(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
ob_get_clean — Get the contents of the active output buffer and turn it off
This function calls the output handler (with the PHP_OUTPUT_HANDLER_CLEAN and PHP_OUTPUT_HANDLER_FINAL flags), discards it's return value, returns the contents of the active output buffer and turns off the active output buffer.
ob_get_clean() will fail without an active output buffer started with the PHP_OUTPUT_HANDLER_REMOVABLE flag.
ob_get_clean() will discard the contents of the active output buffer even if it was started without the PHP_OUTPUT_HANDLER_CLEANABLE flag.
This function has no parameters.
Returns the contents of the active output buffer on success or false on failure.
ob_get_clean() will return false but will not generate an E_NOTICE if there is no active output buffer.
If the function fails it generates an E_NOTICE.
Example #1 A simple ob_get_clean() example
<?php
ob_start();
echo "Hello World";
$out = ob_get_clean();
$out = strtolower($out);
var_dump($out);
?>The above example will output:
string(11) "hello world"