willpower Posted March 27, 2012 Share Posted March 27, 2012 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 Link to comment https://forums.phpfreaks.com/topic/259842-search-multi-dim-array/ Share on other sites More sharing options...
willpower Posted March 28, 2012 Author Share Posted March 28, 2012 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 "; } ?> Link to comment https://forums.phpfreaks.com/topic/259842-search-multi-dim-array/#findComment-1331754 Share on other sites More sharing options...
The Letter E Posted March 28, 2012 Share Posted March 28, 2012 Check out the comment thread on this page: http://php.net/manual/en/function.array-search.php Looks like some good options there. Link to comment https://forums.phpfreaks.com/topic/259842-search-multi-dim-array/#findComment-1331799 Share on other sites More sharing options...
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