- var_dump: documentation ( source)
- preg_replace_callback: documentation ( source)
- preg_match: documentation ( source)
- preg_match_all: documentation ( source)
- strtoupper: documentation ( source)
<?php
echo preg_match('/(\w+) (\w+)/', 'rodrigo capile', $m);
var_dump($m);
echo preg_match('/(\w+) (\w+)/', 'rodrigo capile rodrigo capile rodrigo capile', $m);
var_dump($m);
echo preg_match_all('/(\w+) (\w+)/', 'rodrigo capile rodrigo capile rodrigo capile', $m);
var_dump($m);
echo preg_replace_callback('/(\w+) (\w+)/', function($matches) {return strtoupper(matches);},'rodrigo capile rodrigo capile rodrigo capile');