From:             [EMAIL PROTECTED]
Operating system: 
PHP version:      4.3.9
PHP Bug Type:     Documentation problem
Bug description:  "Comparing strings" manual page

Description:
------------
After studying some string issues I think we need one more page in manual
about strings comparison with a link to/from strcmp. Few confusing
examples from user-notes on
http://www.php.net/manual/en/language.types.string.php

And I haven't found any clear answer about is === operator equal to
strcmp() if two arguments are strings with numbers in the beginning? 

Many coders use "==" instead of "strcmp" and there should be warning
somewhere in manual about possible problems that could arise due to such
misuse.

See also: 
http://bugs.php.net/bug.php?id=28200

Reproduce code:
---------------
<?php
$x1 = '111111111111111111';
$x2 = '111111111111111112';
echo ($x1 == $x2) ? "true\n" : "false\n"; //true
?>

<?
$hello='hi there';
echo($hello?'true':'false');         //true
echo($hello==0?'true':'false');      //true!!!!!
echo($hello===0?'true':'false');     //false
?>


-- 
Edit bug report at http://bugs.php.net/?id=30399&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=30399&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30399&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30399&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=30399&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=30399&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=30399&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=30399&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=30399&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=30399&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=30399&r=notwrong
Not enough info:             http://bugs.php.net/fix.php?id=30399&r=notenoughinfo
Submitted twice:             http://bugs.php.net/fix.php?id=30399&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=30399&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=30399&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=30399&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=30399&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=30399&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=30399&r=float
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=30399&r=mysqlcfg

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