[php] How to search in an array with preg_match?

How do I search in an array with preg_match?

Example:

<?php
if( preg_match( '/(my\n+string\n+)/i' , array( 'file' , 'my string  => name', 'this') , $match) )
{
    //Excelent!!
    $items[] = $match[1];
} else {
    //Ups! not found!
}
?>

$items = array();
foreach ($haystacks as $haystack) {
    if (preg_match($pattern, $haystack, $matches)
        $items[] = $matches[1];
}

Use preg_grep

$array = preg_grep(
    '/(my\n+string\n+)/i',
    array( 'file' , 'my string  => name', 'this')
);

$haystack = array (
   'say hello',
   'hello stackoverflow',
   'hello world',
   'foo bar bas'
);

$matches  = preg_grep('/hello/i', $haystack);

print_r($matches);

Output

Array
(
    [1] => say hello
    [2] => hello stackoverflow
    [3] => hello world
)

You can use array_walk to apply your preg_match function to each element of the array.

http://us3.php.net/array_walk