$re = '@^([ \t]+)function\s++.*+((?>\n++(?!\1[}]$).++)*+\n++\1[}])
# Only match the function which contains \'second\'
(*scs:(2)[\S\s]*\bsecond\b)@mx';
$str = '<?php
class Foo {
/**
* This is a docblock for the first function
*/
function firstMethod() {
// do some first thing
}
/**
* This is a docblock for the second function
*/
function secondMethod() {
// do some second thing
}
}
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php