I almost looked around the internet on how to remove newlines in the strings and that's the common and fastest method to remove the newlines aside from using the slowly preg_replace(). The ob_start () function is a useful tool for buffering your output in your PHP web application. 2k 11 11 gold badges 115 115 silver badges 109 109 bronze badges. , ob_get_clean() would only return the contents of style. The output buffer must be. –I am assuming the data displays properly on the site itself and the browser shows your pages are UTF-8. That will return the content rather than echo it directly and that you have to do in the case of a WordPress shortcode. flush () Attempts to send content from the system's output buffer to the browser. answered Mar 10, 2022 at 19:41. ob_end_clean() don't work as intended. The ob_get_clean() function returns the contents of the output buffer and then deletes the contents from the buffer. Syntax. Return Value: Returns a string containing the contents of the buffer: PHP. log (ab_id_transakce); return empty variable because there is in php ob_get_clean (). ob_get_clean() Triggers both ob_get_contents() and ob_end_clean() ob_get_level() Returns the current nesting level of the output buffer: ob_flush() Flush the content buffer and send it to the browser without ending the buffer: ob_implicit_flush() Enables implicit flushing after every output call. (PHP 4 4. 0. . typo, undefined variable, etc. Conclusion. This thread is more than a year old. Actually, we can use type regulation - intval (ob_get_contents ()), for cheking On/Off output buffering, but it lays the possible problems in the future. to wit: given: ob_start(); echo 'before'; ob_start(); echo 'second';If you want to integrate a new plugin to sell courses and include the selection option in Tutor LMS > Settings > Monetization, then you can use the tutor_monetization_options filter. Hey, no it didn't work Salut, je suis encore en apprentissage de la programmation web notamment avec PHP ou je suis encore novice . Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Otherwise. A callback function can be passed in to do processing on the contents of the buffer before it gets flushed from the buffer. I have a script that echo out content in a php script and resulting in a very large file, e. If it is greater than zero, php will use the value as boolean true and therefore executes ob_end_clean () what cleans the buffer. Syntax. 78k 3 3 gold badges 119 119 silver badges 161 161 bronze badges. I realize that these are different "versions" of php but i feel like this should work. So, it's crucial to consider the trade-offs and optimize when necessary, like using pagination or chunking the output. amazing and fast answer, all I needed, thank you, thank you, thank you! Because just accepting your answer is not. ob_get_level () will return the current nesting level of the output buffer. 5. However, instead of repeatedly starting a new buffer, you could just erase the current buffer with ob_clean() in between calls of ob_get_contents()now what i want here is to remove the newlines from the stored output of the ob_get_clean(). Asking for help, clarification, or responding to other answers. 2 with no alternative. Ensute si tu as compris ces quelques fonctions, les autres devraient pas être compliquées. Books. thanks I appreciate it more than you know. to wit: given: ob_start(); echo 'before'; ob_start(); echo 'second'; PHP マニュアル：ob_end_flush. How to pass a callback function with parameters for ob_start in PHP? 4. Description ¶. I also tried v5. My main template file which would have the page layout (header, body, sidebar, footer) is included into the page. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this siteNoted, and I understand that. mPDF is a PHP library which generates PDF files from UTF-8 encoded HTML. In this case, since the 2 statements follow each other, you're not intercepting anything at all. Otherwise ob_clean () will not work. I think what @toscho tried to say isn't that you can't nest, but that if for some reason you call ob_get_clean() before the code of e. Now, let say that output buffer contains a character "a" and headers are not yet sent. This function will send the contents of the output buffer (if any). ob_get_clean() Returns the current buffer contents, then cleans it out. This is not always the same as the number of characters because some characters may have more than one byte. ob_get_contents — Return the contents of the output buffer. // We use str_pad () to make the output long enough. We get it wordpress has a function set up to pull in the content without using a buffer. Removing ob_start() and echo ob_get_clean() returns the same result on the admin page. ) of the included file and use the output in a variable (string)?Do you want to return certain values from the included files and use them as a variable in your host script?; Local variables in your included files will always be moved to the current scope of your host script - this. I need to re-populate mini-cart when product added via ajax add to cart. I have known for a long time that it closes the buffer and calls both ob_get_contents and ob_end_clean. mikerojas mikerojas. 在php的默认配置下，php输出是先输出到缓冲区（output_buffering，内存区域），然后输送到浏览器。. . ini involving setting output_buffer and/or zlib. So, until browsers begin to show buffered content. 不过只要数据还没有真正发送到浏览器（严格来说是tcp buffer），那么是可以通过内置的ob_clean函数进行清空的。. This will help you better understand. 3. ob_get_clean() essentially executes both ob_get_contents() and ob_end_clean(). Hot Network Questions Voltage change on Resistor change (TinkerCad) Does the escape velocity formula take into account how a gravitationally bound object's distance to its primary increases before coming back down?. I couldn't find any diagrams explaining output buffering on the worldwide-web so I made a diagram myself in Windows mspaint. This is referred to as output control. Q&A for work. This function does not destroy the output buffer like ob_end_clean () does. Definition and Usage. This function discards the contents of the topmost output buffer and turns off this output buffering. As soon as you call this function all output will be stored in an internal buffer and nothing will be sent to the browser until the script. The ob_get_flush () function outputs the contents of the topmost output buffer, returns the contents and the deletes the buffer. Community Bot. ob_srtart begins output buffering. The output buffer must be started by ob_start () with PHP_OUTPUT_HANDLER_CLEANABLE flag. Try using output buffer like this : ob_start (); // your includes echo ob_get_clean (); Use this in all of your includes, and you will not get any errors. It's showing two because you have a 2nd layer of output buffering active. 0. The output may be caught by another output buffer or, if there are no other output buffers, sent directly to the browser. I am trying to get the browser timezone via JavaScript and capture it in a php variable with ob_start() and ob_get_clean. It really depends on your use case. Answer to your both the question lies in output buffer(ob), Hope this will help you out in understanding. answered Oct 8. 3. Output buffers are stackable, that is, you may call ob_start () while another ob_start () is active. The code is sorta lik. It works. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Now the way how it is set up now works. thanks! – Alexandru Trandafir Catalin Sep 29, 2014 at 7:45Using the output buffer for this is not a very clean solution. But of course, these are only a few of the common basics of output buffering. x. I am trying to create a modular plugin that includes action hooks for developers to add content before and after the main shortcode content. This one uses ob_get_clean() and does not produce the correct result:Wordpress: ob_get_clean(); doesn't return $value in shortcode?Helpful? Please support me on Patreon: thanks & prai. Description ¶. 2. ob_get_length — Return the length of the output buffer. (PHP 4 4. Total. Am on a shared server. ob_end_flush () Deletes the topmost output buffer and outputs its contents. Shortcodes have to return their. Without the second ob_start (), the output is 21. Basically you need to ob_start() before first html tag or php code printing the data - if that div stage1sat should belong to message, then you need to move ob_start before it. There are a number of functions related to output buffering, but the two we’ll use are ob_start and ob_get_clean. Conclusion. if you call ob_end_clean() after ob_start("ob_gzhandler"), the "Content-Encoding: gzip" header will still get sent (assuming the browser supports the encoding). I was trying to debug my code using error_log() and I discovered that ob_get_clean() also truncates the error_log() buffer right in the middle of its output, and well as the output buffer which it is supposed to truncate. x and PHP 5. How to Use the ob_get_length() Function. I'm new with this library. I pass the. Two problems. Description ¶. if you don't call ob_start() again with the ob_gzhandler callback function, the output will not be compressed, but the header will say it is. php Project: jiatower/php. It is the same as the following statement, which might be better to understand: "If ob_get_level () returns a 'truthy' value (is not 0 but. And that's not a rare occurrence either, difficult to track down when it happens. The ob_start () function starts PHP’s output buffering. Ada dua fungsi lain yang biasanya Anda pasangkan dengan ob_get_contents():, yang pada dasarnya memberi Anda apa pun yang telah "disimpan" ke buffer sejak dinyalakan ob_start(), dan kemudian ob_end_clean()atau ob_flush(), yang menghentikan penyimpanan dan membuang apa pun yang disimpan, atau berhenti menyimpan dan. ob_get_clean does two things: it gets the contents of the buffer as a string, and it cleans out the buffer. 1. Otherwise I would use them in the shortcode handler, no use to put them in theme. The W3Schools online code editor allows you to edit code and view the result in your browser1 Answer. There are two other functions you typically pair it with: ob_get_contents (), which basically gives you whatever has been "saved" to the buffer since it was turned on. However, like I mentioned, if the webserver is. Share. 7. 100MB Currently I use the following way to capture the output and write to another file ob_start();Sorry to resurrect a 4 year old post, but I stumbled across it and wanted to point out that ob_get_contents() followed by ob_clean() is not exactly the same as ob_get_clean(). ob_get_flush ( ): string|false. ob_get_clean(): Three Birds, One Stone. 1. 참고 See also header() and setcookie() . php is just echoed. x and PHP 5. Also, there is another function ob_get_contents() that grabs all of the data gathered since we called ob_start. Hi, we were using html_output() to get all the tags generated by the SEO Framework 4. ob_get_clean() gets the buffer content, cleans the buffer and ends the buffering. Share. ob_get_flush() return the buffer and immediately output it. Usando ob_start le permite mantener el contenido en un buffer del lado del servidor hasta que esté listo para mostrarlo. Return ValuesEverything is enabled, and I believe the problem is that running ob_get_level () at the start of my script produces a level of 1. Share. Hi, i am using 0. Function. It executes both ob_get_contents () and ob_end_clean () functions. corvidmemory corvidmemory. 22. ob_get_clean — 得到当前缓冲区的内容并删除当前输出缓冲区 说明 ¶ ob_get_clean (): string|false 得到当前缓冲区的内容并删除当前输出缓冲区。 ob_get_clean () 实质上是一. So there's possibly some other non-printable. This function discards the contents of the topmost output buffer and turns off this output buffering. joson_encode however does just fine, when wp_debug is disabled. May 23, 2015 at 9:20. ob_get_length() gets the size of the buffer, in bytes. This was a "teaching an old dog new tricks" mistake. ob_get_length() Get the size of the buffer, in bytes. Find centralized, trusted content and collaborate around the technologies you use most. The PHP ob_get_clean() function returns the contents of the current output buffer and then deletes this output buffer. Keep in mind that output may be buffered by default, depending on how you are running PHP (CGI, CLI, etc. See the syntax, return value, and examples of this function in PHP. Connect and share knowledge within a single location that is structured and easy to search. ob_get_clean() は、基本的に ob_get_contents() および ob_end_clean() を同時に実行するのと同じです。 出力バッファを開始するときに、 ob_start() で PHP_OUTPUT_HANDLER_CLEANABLE フラグを指定する必要があります。指定しなければ、 ob_get_clean() は動作しません。 With output buffering, your HTML is stored in a variable and sent to the browser as one piece at the end of your script. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. ini settings to reflect that. Capture php output of function call. The output may be caught by another output buffer or, if there are no other output buffers, sent directly to the browser. When the. In versions of dompdf prior to 0. Some parameters will be different depending on the include. Esta función desecha el contenido del búfer de salida en cola y lo desactiva. 3. I've got a problem when looping using foreach() loop and inside of this loop using ob_start() and ob_get_clean(). Descripción ¶. The definition should mention that the function also "turns off output buffering", not just cleans it. it stops junk being returned. ob_start(): ob_start — Turn on output buffering. It is based on FPDF and HTML2FPDF, with a number of. Using ob_gzhandler and manually echo'ing the buffer. According to the manual,. So this leads me to think that the notices are. There's a limit to how much there can be buffered which by default is 4KB so you are hitting the maximum with your script. Taking ob_start() out of my code seems to make no difference to how it works. PHP may be configured to automatically create an output buffer when the script begins, which is why the buffer level may be 1 without calling ob_start (). - To make peace with devel, we use drupal_set_header() to set the headers. I suggest using the buffer, but you have to get the contents and then clean the buffer before the end of the page, otherwise it is outputted. Basically you just wrap your html in ob_start(); this will return the html as a string so you can echo it. ob_get_contents — Return the contents of the output buffer. Capturing PNG stream with PHP output buffer. Since using a buffer you dont need to save the require to a variable as the html will be returned by ob_get_clean; Share. Other functions are all working fine e. htmlentities () takes an optional third argument encoding which defines encoding used in conversion. 6. I'm trying to create a way to show an image created with PHP/GD, in an OOP fashion. Whether the buffer-cleaning functions _should_ invoke the output callback (keeping in mind that in themselves they do not generate. Follow answered Mar 1, 2011 at 23:25. 1. David Barker David Barker. 4. comes in handy for conditional statements. Using the ob_get_length() function is straightforward. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. basically, I have products displayed on a page using a while loop, each containing an 'id' based on the product id, when this button gets pressed, I use an iframe to call a script that adds the ID to an array, that array is then accessed in the basket script, which prints all items in an SQL database where the ID matches the numbers in the. No, this is not a correct use for ob_start(). And by that you can put the variable content into your json data. Here are the functions you could use: ob_get_clean. If I remove the ob_end_clean(); the output is hi hi. There are two ways that I can think of at this moment. add_filter('wp_nav_menu_items', 'crunchify_add_login_logout_menu', 10, 2);2. The ob_clean () function deletes all of the contents of the topmost output buffer, preventing them from getting sent to the browser. PHP IN DOMPDF how include ? #1924. 4. 2. 4. ob_get_clean () is a function that gets the current output buffer contents and deletes it. 13 of php on MAMP and saw the same problem. Hooking on the wp_h. 0. We can take the previous example to learn how to subsequent buffers into a stack. Which means that the contents returned are not the result returned by the callback, but the input passed to the callback. Just make sure that you call ob_end_flush () the appropriate number of times. The output buffer must be started by ob_start () with PHP_OUTPUT_HANDLER_CLEANABLE flag. g. Có nhiều lợi ích khi sử dụng ob_start trong PHP, bao gồm: Giảm tải server: ob_start có thể giúp giảm tải server bằng cách lưu trữ toàn bộ dữ liệu đầu ra trong bộ đệm (buffer) trước khi gửi nó đến trình duyệt. We hope this article has been informative and useful in understanding the ob_clean () function in PHP. For example: use function OutputControl\ob_start; use function OutputControl\ob_end_flush; use function OutputControl\ob_get_clean; ob_start (); echo "Hello, world. In PHP 8. ob_get_clean, only works twice. When I use Artisan::call('migrate') in code (use this in a custom Artisan command) this doesn't return any message. However, it is possible that you have output buffering enabled for all files through the output_buffering ini parameter (see the manual ). In such case the creation of the file can fail. (The ordering is important: ob_flush() flushes PHP's buffers, flush() then tells Apache to flush it too. output_callback. ob_get_clean, only works twice. Advantages of output buffering. Conclusion. See answer from @Marc to, ob_get_clean() is the short variant of ob_get_contents(); ob_clean();. También se usa para obtener el búfer de salida nuevamente después de limpiar el búfer. 注意：ob_clean 只是. Understanding ob_start() function in php. Its output is rendered to the buffer. ob_get_clean essentially executes both ob_get_contents and ob_end_clean (). For what you are trying to do, there is no need to use ob_start and ob_flush. Otherwise this function will not work. ob_get_contents — Return the contents of the output buffer. Output Control 함수 목록. – Raj. However, casting to number should ignore regular leading spaces. I also want to be able to show the user the XML before hand. the *_clean variants just empty the buffer, whereas *_flush functions print what is in the buffer (send the contents to the output buffer). Description ¶. 1) ob_flush (), flush () in any combination with other output buffering functions; 2) changes to php. 0. I wrote these two simple (and hacky) scripts to demonstrate. output buffering ob_get_clean not working. ini involving setting output_buffer and/or zlib. Output had to have started in order for processing to get to your shortcode. Otherwise ob_clean () will not work. But when an exception is thrown inside the buffer reader it will effect the reader by stopping it and echo the output instead of keep capturing it. 1. For this reason, in previous versions, you were able to echo some content into the HTML. ) The buffer is limited in size, and can easily overrun when left to defaults. For text-logfile/debugging needs, I want all , , multiple spaces and so on to be cleared. I prefer to be more explicit with what my code is doing, and I think it is clearer when you split getting the contents of. If you are using error_log(), use ob_get_contents() and ob_end_clean() instead of ob_get_clean(). ob_get_flush() Returns the current buffer contents, output it immediately, then clean it out. Description. I'm generating a ton of XML that is to be passed to an API as a post variable when a user click on a form button. ob_get_flush () flushes the output buffer, return it as a string and turns off output buffering. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. PHP - imagepng not working properly. (Necessitating ob_clean() as a further workaround. ob_get_clean, only works twice. Find centralized, trusted content and collaborate around the technologies you use most. ob_get_flush — Flush the output buffer, return it as a string and turn off output buffering. A callback function can be passed in to do processing on the contents of the buffer before it gets flushed from the buffer. yeah the php script was adding some whitespaces at the beginning and images files became corrupted on downloading, ob_get_clean() fixed it. ob_clean() - Xóa tất cả nội dung của bộ đệm đầu ra trên cùng. clean) can occur simultaneously. If you don't buffer your output, it doesn't seem like it would be possible for a web server to output a Content-Length header. Viewed 2k times. The reason I'm not voting for ob_get_clean is because I've had times when other developers get confused regarding what is really going on, the function name doesn't really state that the output buffering will end after it's call. PHP may be configured to automatically create an output buffer when the script begins, which is why the buffer level may be 1 without calling ob_start (). Follow edited Oct 8, 2014 at 1:22. Si fuera necesario continuar procesando el contenido del búfer, se ha de llamar a ob_get_contents () antes que a ob_end_clean (), ya que el contenido del búfer es desechado cuando se llama a ob_end_clean () . ob_flush() - Vaciar (enviar) el búfer de salida ob_end_flush() - Volcar (enviar) el búfer de salida y deshabilitar el almacenamiento en el mismo ob_end_clean() - Limpiar (eliminar) el búfer de salida y deshabilitar el almacenamiento en el mismo ＋add a note現在のバッファの中身を取得し、出力バッファを削除します。 ob_get_clean() は、基本的に ob_get_contents() および ob_end_clean() を同時に実行するのと同じです。 出力バッファを開始するときに、 ob_start() で PHP_OUTPUT_HANDLER_CLEANABLE フラグを指定する必要があります。I know that this is an old question but I wanted to write my answer for visual learners. ob_get_clean () remove value of input. The PHP ob_get_clean() function returns the contents of the current output buffer and then deletes this output buffer. WordPress uses get_ for returning almost any function inside the loop without echoing out to the browser. We next include the template file. ob_end_clean () Deletes the topmost output buffer and all of its contents. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. You can rate examples to help us improve the quality of examples. ob_get_clean — Get current buffer contents and delete current output buffer. Tôi nhắc đến cơ chế cache vì các hàm ob_start(), ob_get_contents(), ob_clean(), ob_end_flush() sẽ hỗ trợ chúng ta trong quá trình thực hiện cơ chế này. Closed. If we create. 1. PHP_OUTPUT_HANDLER_CLEAN when calling ob_clean(), ob_end_clean() and ob_get_clean() PHP_OUTPUT_HANDLER_WRITE automaticflush; Phases start, final and flush (resp. Make sure you customize your style as per your theme. Output a string to the browser before the script has finished running: <?php. After this is done you are not able to modify header. ob_clean () Also be aware that nothing is already being flushed with functions like echo, print_r, etc. This attempts to push current output all the way to the browser with a few caveats. Connect and share knowledge within a single location that is structured and easy to search. Here are references for the two functions required for basic output buffering: PHP ob_start() PHP ob_get_clean() ★ Pro Tip: ‹ PHP Get Memory Usage vs. The problem with this is, that you have “ob_get_clean” outside the “if”, where “ob_start” is. Whereas all my other code that is around the wp_head is indented (tabbed) two times. Example: ob_start(); print "foo"; // This never prints because ob_end_clean just empties ob_end_clean(); // the buffer and never prints or returns anything. ob_get_contents() fetches whatever is inside the buffer. you have to use the new aliases instead of using the PHP 7. txt file contain a new line - " " at the end, except for the data10. Le tampon de sortie doit avoir été démarré avec la fonction ob_start () et le drapeau PHP_OUTPUT_HANDLER_CLEANABLE . Turning on output buffering alone decreases the amount of time it takes to download and render our HTML because it's not being sent to the browser in pieces as PHP processes. 1 the document fed to dompdf would be pre-processed using PHP's eval() function when DOMPDF_ENABLE_PHP was set to true. The ob_clean () function is a useful tool for clearing the output buffer in your PHP web application. Provide details and share your research! But avoid. ob_end_clean(). function test_shortcodes () { return 'Shortcodes are working!'; } add_shortcode ('test_shortcodes', 'test_shortcodes'); I have. If you just want to clean the buffer after starting output buffering with. Everything works normally but the returned HTML structure is broken. If you only want to get data as string and clear buffer use ob_get_clean() You can think of output buffering as creating "bookmarks" or "restore points" in output buffer. Starting Output Buffering. 4 ob_* functions. 1. El búfer de salida debe estar iniciado por ob_start () con el indicador PHP_OUTPUT_HANDLER_CLEANABLE . What you can do is to do an explicit ob_start() again in the beginning of the script so you get a second buffer as they can be nested. Có nhiều lợi ích khi sử dụng ob_start trong PHP, bao gồm: Giảm tải server: ob_start có thể giúp giảm tải server bằng cách lưu trữ toàn bộ dữ liệu đầu ra trong bộ đệm (buffer) trước khi gửi nó đến trình duyệt. But before returning the code to the caller, do the necessary text substitution. My searches on SO brought me solutions like@GentlemanMax Yes, regarding both. Return. 1,658 1 1 gold badge 16 16 silver badges 32 32 bronze badges. This is a bit harsh. The short answer is that yes, you have to turn on output buffering before you can use ob_clean. . The advantage is when you need to return the entire content of the page (or store it in a variable), rather than just echo it. oh my god @Paul Norman. Kakou347 opened this issue on Apr 27, 2019 · 1 comment. Using the ob_get_level() function is straightforward. This code adds wp_nav_menu_items wordpress hook. 5. Definition and Usage. Learn more about CollectivesCollectives™ on Stack Overflow. Output Control 함수 목록. The ob_get_contents() function is a built-in function in PHP that allows you to get . For the OP's purposes, it's probably fine, but ob_get_clean() ends output buffering while ob_get_contents() and ob_clean() do not. 2. Im novice so i dont understand what this doing. I'm using PHP 5. –W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Oct 30, 2010 at 20:39. Lets say this is my script:Wordpress take your content and apply filters to it. I'm having some trouble because anything I do in the function called by the action hook is always echoed out at the top of the shortcode instead of inside the shortcode where it belongs. i was using ob_start but it is a banned function for me. This is the PHP code:. File: smarty_internal_cacheresource_file. Learn more about CollectivesI have an issue with a shortcode that I'm writing for wordpress. 5. // Some browsers will not display the content if it is too short. php: ob_end_flush() stops header() from working. La función ob_get_clean() es una función PHP incorporada que se utiliza para limpiar o eliminar el búfer de salida actual. Learn how to use the ob_get_clean () function in PHP, an in-built function that cleans or deletes the current output buffer and returns the output buffering again. Should you wish to use the output from the included file, you should use op_get_contents() , which will return a string of the contents of the buffer. If ob_flush() isn't called at the end of the app, the contents are automatically flushed, again. - The shutdown function would call ob_get_clean() again, and write the result to watchdog. " Actually, the callback function, once set by ob_start (), will be called regardless. it will work as you would use ob_start with no. So, fortunatly there is some php tools that do interpret the page and can fetch any sub files. ob_get_flush flushes the output buffer, return it as a string and turns off output buffering. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 出力バッファを「フラッシュ（出力）」してから、出力のバッファリングをオフにする。. Thanks for contributing an answer to Stack Overflow! Please be sure to answer. Right now all the stuff that gets included in wp_head are left justified all the way in the code view. 3. If we create buffers. Add a comment | 0The output buffer must be started by ob_start() with PHP_OUTPUT_HANDLER_CLEANABLE and PHP_OUTPUT_HANDLER_REMOVABLE flags. Tôi có 1 ví dụ đơn giản như sau: New search experience powered by AI. Example #1. Description ¶ ob_get_clean (): string|false Lit le contenu courant du tampon de sortie puis l'efface. However ob_get_clean() retrieves the contents first, and then cleans the buffer. g. ), let's assume that we are looping through a set of users (as setup_userdata() fills the global variables of the currently logged in user and isn't useful for this task) and try to display. Q&A for work. Has anyone managed to achieve this? Thanks a lot for any pointers. Take a look at very simple example for PHP 5. fdehanne fdehanne. Yeah, i think i must use ob_get() instead of ob_get_clean() but anyway ob_get() is empty too, i think problem is i cannot call any ob_* inside a function! is this right? – user899205 Aug 30, 2011 at 15:58Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this siteob_start(); starts output buffering to the internal buffer not (screen), then when you add ob_get_contents(); it copy the the output from internal buffer still nothing printed, and when ob_end_clean(); interpreted, it will clear all internal buffer memory, nothing outputed to screen. 0, but it seems that the function is deprecated in 4. There is a compatibility issue because the Output Buffering has been changed in PHP 8.