note 93109 added to control-structures.if

an interesting concept, using only double == ... but i'm executing php from the command line on an ubuntu server using php5 ... and if i use ==, the function fails, but if i use = the function works. i try it with good and bad value pairs echoing "match" to the screen when they match (the executed line) and "match" will not happen with ==. only with =. neither one tosses an error, but the == NEVER shows a match and the = matches when the two strings being compared actually match. this is not something i was expecting after programming in several languages. go figure. #!/usr/bin/php <?php if ($check = $output) echo "match\n"; ?> obviously there's code to make them match or not match, but that code does not change. i JUST add/remove an = and the code works with =. ---- Server IP: 208.69.120.35 Probable Submitter: 173.171.70.22 ---- Manual Page -- http://www.php.net/manual/en/control-structures.if.php Edit -- https://master.php.net/note/edit/93109 Del: integrated -- https://master.php.net/note/delete/93109/integrated Del: useless -- https://master.php.net/note/delete/93109/useless Del: bad code -- https://master.php.net/note/delete/93109/bad+code Del: spam -- https://master.php.net/note/delete/93109/spam Del: non-english -- https://master.php.net/note/delete/93109/non-english Del: in docs -- https://master.php.net/note/delete/93109/in+docs Del: other reasons-- https://master.php.net/note/delete/93109 Reject -- https://master.php.net/note/reject/93109 Search -- https://master.php.net/manage/user-notes.php