(PHP 4, PHP 5, PHP 7)
ob_get_contents — Return the contents of the output buffer
ob_get_contents ( ) : string
Gets the contents of the output buffer without clearing it.
This will return the contents of the output buffer or false, if output buffering isn't active.
Example #1 A simple ob_get_contents() example
<?php ob_start(); echo "Hello "; $out1 = ob_get_contents(); echo "World"; $out2 = ob_get_contents(); ob_end_clean(); var_dump($out1, $out2); ?>
The above example will output:
string(6) "Hello " string(11) "Hello World"
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https://www.php.net/manual/en/function.ob-get-contents.php