Bug #77928 [Com]: echo ('string'==0)?"TRUE":"FALSE"; // TRUE

From: Date: Sun, 21 Apr 2019 09:44:11 +0000
Subject: Bug #77928 [Com]: echo ('string'==0)?"TRUE":"FALSE"; // TRUE
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=77928&edit=1 ID: 77928 Comment by: spam2 at rhsoft dot net Reported by: shamil dot kur at gmail dot com Summary: echo ('string'==0)?"TRUE":"FALSE"; // TRUE Status: Not a bug Type: Bug Package: *General Issues Operating System: Debian PHP Version: 7.3.4 Block user comment: N Private report: N New Comment: what about reading a php documentation for beginners and start using === instead spam bug trackers? Previous Comments: ------------------------------------------------------------------------ [2019-04-21 06:28:27] shamil dot kur at gmail dot com Or do you want to say that when comparing with int, any string == 0? If so, then the question is closed. But "8"==8, "0"==0, "7"==7, "7"!=8 but "7"==0 ------------------------------------------------------------------------ [2019-04-21 06:23:44] shamil dot kur at gmail dot com If decided that this is not an error. That does not equate \0 to any string. Let it always be not equal. Because, it is ambiguity. Is this logical? <?php if("any string"==0)echo "this\n"; if("\0"==0)echo "and this\n"; //Result: this end this ------------------------------------------------------------------------ [2019-04-21 06:14:33] shamil dot kur at gmail dot com // You are joking? // It violates the laws of logic. $a=0; $b='string 1'; $с='string 2'; if(($a==$b) && ($a==$c))echo "\$b==\$c"; // But $b don't eq $c. if($b!=$c)echo "\$b!=\$c"; ------------------------------------------------------------------------ [2019-04-20 18:53:02] requinix@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 ------------------------------------------------------------------------ [2019-04-20 18:22:33] spam2 at rhsoft dot net Expected: echo ('string'==0)?"TRUE":"FALSE"; // FALSE - OK fix your expectations! 'string'==0 evaluates to TRUE php > echo ('string'==0); 1 php > echo ('string'===0); php > that's how PHP works all the time https://www.php.net/manual/en/language.types.type-juggling.php ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=77928 -- Edit this bug report at https://bugs.php.net/bug.php?id=77928&edit=1

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