preg_match_all

PHP 4, PHP 5, PHP 7, PHP 8
preg_match_all - Perform a global regular expression match
Preg Match All Online Tool
Manual
Code Examples

Example #1 Find matching HTML tags (greedy)

Result: matched: <b>bold text</b> part 1: <b> part 2: b part 3: bold text part 4: </b> matched: <a href=howdy.html>click me</a> part 1: <a href=howdy.html> part 2: a part 3: click me part 4: </a>
<?php
// The \\2 is an example of backreferencing. This tells pcre that
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Example #2 Using named subpattern

Result: Array ( [0] => Array ( [0] => a: 1 [1] => b: 2 [2] => c: 3 ) [name] => Array ( [0] => a [1] => b [2] => c ) [1] => Array ( [0] => a [1] => b [2] => c ) [digit] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [2] => Array ( [0] => 1 [1] => 2 [2] => 3 ) )
<?php
$str = <<<FOO
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Example #3 Getting all phone numbers out of some text.

<?php
preg_match_all("/\(? (\d{3})? \)? (?(1) [\-\s] ) \d{3}-\d{4}/x",
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Example #4 of preg_match_all

<?php
preg_match_all('/(foo)(bar)(baz)/', 'foobarbaz', $matches , PREG_SET_ORDER, 0);
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Function preg_match_all:

Regular Expressions (Perl-Compatible) Functions

Most used PHP functions