Edit report at https://bugs.php.net/bug.php?id=62633&edit=1
ID: 62633
User updated by: iam4webwork at hotmail dot com
Reported by: iam4webwork at hotmail dot com
Summary: strcasecmp does not warn user if both params are not
strings
Status: Not a bug
Type: Bug
Package: Scripting Engine problem
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
If the PHP version of strcasecmp were to behave like the PHP version of strcmp
in terms of handling a Boolean as input wouldn't that be more intelligent than
allowing the C version of STRCASECMP to accept a parameter that is not
terminated with a null string (see https://buildsecurityin.us-cert.gov/bsi-
rules/home/g1/847-BSI.html re security issues: DOS)?
Also, whereas weakly-typed is a design feature, it should not become a mantra
in
its own right. If a built-in function is expecting parameters of a certain
type
and an event occurs where the wrong parameters are provided shouldn't the user
be alerted? Or, is the onus that of the programmer?
Previous Comments:
------------------------------------------------------------------------
[2012-07-23 01:08:46] ahar...@php.net
PHP is a weakly typed language by design: if a scalar can be coerced into the
type that a function expects, it will be.
Expected behaviour â not a bug.
------------------------------------------------------------------------
[2012-07-22 21:23:23] iam4webwork at hotmail dot com
I believe that somewhere the underlying C source code is converting the PHP
TRUE,
i.e. 1 to "1"
------------------------------------------------------------------------
[2012-07-22 21:19:42] iam4webwork at hotmail dot com
Description:
------------
When I provide strcasecmp with two parameters where one is TRUE and the other
is a
string, php does not generate a warning to say that the first parameter needs
to
be a string and silently converts TRUE to "1" and executes.
Test script:
---------------
<?php
var_dump(strcasecmp(TRUE, "bob"));
// -49
Expected result:
----------------
I expected a parser error message.
Actual result:
--------------
-49
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=62633&edit=1
