Edit report at https://bugs.php.net/bug.php?id=55742&edit=1

 ID:                 55742
 User updated by:    birke at d-scribe dot de
 Reported by:        birke at d-scribe dot de
 Summary:            Description of what happens if you pass a number
-Status:             Open
+Status:             Closed
 Type:               Documentation Problem
 Package:            Documentation problem
 PHP Version:        5.3.8
 Block user comment: N
 Private report:     N

 New Comment:

Not needed, the cytpe intro docs explain it.


Previous Comments:
------------------------------------------------------------------------
[2011-09-20 15:59:23] birke at d-scribe dot de

Description:
------------
---
From manual page: http://www.php.net/function.ctype-alnum
---
There should be the following warning in the docs:

If you are passing in a number, ctype_alnum will return false for all numbers that do not represent alphanumeric character codes (see chr). 

Test script:
---------------
<?php
$myVar = 10;
echo ctype_alnum($myVar) ? "T" : "F"; // returns F
$myVar = 48;
echo ctype_alnum($myVar) ? "T" : "F"; // returns T, because ASCII 48 = "a"
$myVar = "10";
echo ctype_alnum($myVar) ? "T" : "F"; // returns T





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