#37403 [Opn->Bgs]: Wrong key returned in array_search

ID: 37403 Updated by: derick@php.net Reported By: jonataswalker at gmail dot com -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Linux 2.6.13 PHP Version: 5.1.4 New Comment: Floating point values have a limited precision. Hence a value might not have the same string representation after any processing. That also includes writing a floating point value in your script and directly printing it without any mathematical operations. If you would like to know more about "floats" and what IEEE 754 is read this: http://docs.sun.com/source/806-3568/ncg_goldberg.html Thank you for your interest in PHP. . Previous Comments: ------------------------------------------------------------------------ [2006-05-11 04:02:33] jonataswalker at gmail dot com Description: ------------ Hi there, I'd like some help. I've searched and found a similar question but no answer was given, so I need to ask same thing. How can this be possible? Reproduce code: --------------- $array = array(3453453453453453453445345345,345345345345345346452,12345); $key = array_search(345345345345345340300,$array,true); if ($key === false) print "false"; else print var_dump($key); Expected result: ---------------- false Actual result: -------------- int(1). Even changing last 4 digits in needle, I always get int(1). ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=37403&edit=1