Endrew Posted May 1, 2006 Share Posted May 1, 2006 I'm having difficulty comparing 2 dimensional arrays. coding :-foreach($ary1 as $row) foreach($row as $col=>$val) ............. ............. I like to add one more array to make comparison. But foreach takes only one array. Is there anyway I can accomplish this. Link to comment https://forums.phpfreaks.com/topic/8790-comparing-two-dimensional-array/ Share on other sites More sharing options...
kenrbnsn Posted May 1, 2006 Share Posted May 1, 2006 The foreach() statement takes one dimension at a time.One way to compare two 2-d arrays is to create two temporary arrays consisting of the indices from the original arrays and the serialized content of the 2nd dimension. The compare the temporary arrays.[code]<?php$ary1 = array(array('1','2','3','4'),array('one','two','three','four'),array('1','one','two','2','3','three'));$ary2 = array(array('1','one','two','2','3','three'),array('one','two','three','four'),array('1','2','3','4','5'));$tmp1 = array();$tmp2 = array();foreach ($ary1 as $k => $v) $tmp1[$k] = serialize($v);foreach ($ary2 as $k=> $v) $tmp2[$k] = serialize($v);$result = array_diff($tmp1,$tmp2);?>[/code]Ken Link to comment https://forums.phpfreaks.com/topic/8790-comparing-two-dimensional-array/#findComment-32285 Share on other sites More sharing options...
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