From: anon at example dot com
Operating system:
PHP version: 5.2.5
PHP Bug Type: Feature/Change Request
Bug description: Suggestion for a "Substring is Present" Function
Description:
------------
What we often need to test for is simply whether a substring is present in
a string or not. For example, this is very common when examining a user
agent -- is "MSIE" there or not?
Currently you can use strpos(), but you have to be very careful to test
only with two specific formulations, using the strict equivalency
operators:
if (strpos($x, $y) === FALSE)
or
if (strpos($x, $y) !== FALSE)
You have to use exactly "=== FALSE" and "!== FALSE" and no other syntax to
avoid ambiguity with a substring position of number "0". (See discussions
of this on strpos() man page.)
And having to say "not false" rather than "true" is just inelegant.
It would be handy and much less prone to syntax mistakes, to have a
dedicated "substring is present" function which returns only TRUE -- the
substring is there -- or FALSE -- the substring isn't there.
This might be "strpres()" ("string present"), with an equivalent
stripres().
Example:
if ( strpres ($_SERVER['HTTP_USER_AGENT'], 'MSIE' ) == TRUE )
This is exactly the direct, elegant, non-ambiguous, non-confusing,
rational way to ask this question. strpos() is not. strstr() is not.
--
Edit bug report at http://bugs.php.net/?id=44334&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=44334&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=44334&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=44334&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=44334&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=44334&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=44334&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=44334&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=44334&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=44334&r=support
Expected behavior: http://bugs.php.net/fix.php?id=44334&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=44334&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=44334&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=44334&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44334&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=44334&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=44334&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=44334&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=44334&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=44334&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=44334&r=mysqlcfg
