#22533 [Com]: problem with strtr(), 100% of CPU use

From: Date: Sat, 27 Sep 2003 13:39:32 +0000
Subject: #22533 [Com]: problem with strtr(), 100% of CPU use
References: 1  Groups: php.bugs 
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ID: 22533 Comment by: xuefer at 21cn dot com Reported By: andre at softexpert dot com Status: Bogus Bug Type: Reproducible crash Operating System: W2k PHP Version: 4.2.3 New Comment: i'd say this is a bug, why not? do u mean, in a vhost, every user can easily take up 100 server cpu usage by such simple script? and script never end(maybe in linux, it will timeout, i've not tested) and do u mean, the beginners(even advanced programmer) will possibly get 100% cpu usage when they mistype a variable: echo strtr("123123", array($from => $to)); while $from is not defined, it become null, and will be converted into (string) "" Previous Comments: ------------------------------------------------------------------------ [2003-03-04 05:54:13] moriyoshi@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Don't pass to strtr a null string as that to be replaced. ------------------------------------------------------------------------ [2003-03-04 05:38:42] andre at softexpert dot com When using strtr() passing a number as first parameter, and an array that contains ("" => "anything"), php.exe uses 100% of CPU and stays running until IIS return a CGI Time limit. Example: echo strtr(10, array("" => "a")); ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=22533&edit=1

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