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@ 2013-12-28T00:35:26Z

<?php
	$str = "cao isso pala só temp que pala vai temp aparecer temp aqui cao";
	$match=array();

	$return = array_unique(explode(' ', $str));
	if( array_key_exists( 'cao', $return ) ){
        echo 'Yes matched!';
	}

Output
Performance
VLD
References
Branches

explode: documentation ( source)
array_unique: documentation ( source)

preferences:dark modelive preview

36.23 ms | 402 KiB | 5 Q