note 46780 deleted from function.array-combine by aidan

Note Submitter: m71 at free dot fr ---- much shorter and more efficient: <?php if (!function_exists('array_combine')){ function array_combine($a,$b) { if (count($a)!=count($b)) return FALSE; foreach($a as $key) list(,$c[$key])=each($b); return $c; }} $a=array( 1=>"a",0=>NULL,NULL=>0,"b"); next($a);next($a); $b=array( "b", 0, NULL,array()); next($b); var_dump(array_combine($a,$b)); ?> yields: array(4) { ["a"]=> string(1) "b" [""]=> int(0) [0]=> NULL ["b"]=> array(0) { } } The weird keys in $a make that constructions using current() or next() would not work (recall btw. that a NULL key is treated by PHP as empty string). I added the 'next()' in the above to show that reset($b) is not needed. Note that the above returns NULL if $a,$b are empty. If you prefer, add "$c=array();" before "foreach" [to get a more logical result] or "!count($a) or " after "if (" [to imitate the PHP5 function].