Search Multi Dim Array

[willpower]

Whats the most efficient way of searching within a multi dimensional array?

 

My Array =

 

Array ( [0] => Array ( [0] => Item 1 [title] => Item 1 [1] => 2012-03-21 [eventDate] => 2012-03-21 [2] => 21 [eventDay] => 21 ) [1] => Array ( [0] => Item 2 [title] => Item 2 [1] => 2012-03-21 [eventDate] => 2012-03-21 [2] => 21 [eventDay] => 21 ) )

 

String to find = '21'

 

If (MY ARRAY contains STRING TO FIND) {}

 

Clearly in this case there are several '21' (s) so if I only wanted to search the [eventDay] keys...would there be a fast effective and efficient manner?

 

 

Thoughts and help gratefully received.

 

Will

[willpower]

Found this...which works...

 

<?php

function in_object($val, $obj){

    if($val == ""){
        trigger_error("in_object expects parameter 1 must not empty", E_USER_WARNING);
        return false;
    }
    if(!is_object($obj)){
        $obj = (object)$obj;
    }

    foreach($obj as $key => $value){
        if(!is_object($value) && !is_array($value)){
            if($value == $val){
                return true;
            }
        }else{
            return in_object($val, $value);
        }
    }
    return false;
}
?>
Usage  :
<?php

$array = array("a", "b", "c"=>array("x", "y"=>array("p", "q"=>"r")));

if(in_object("r", $arrX)){
    echo "r is there ";
}else{
    echo "Its not there ";
}
?>

[The Letter E]

Check out the comment thread on this page: http://php.net/manual/en/function.array-search.php

 

Looks like some good options there.