#18705 [Fbk->Opn]: More info in strstr()
| From: | ahristov at icygen dot com | Date: | Sat, 03 Aug 2002 10:38:51 +0000 |
| Subject: | #18705 [Fbk->Opn]: More info in strstr() | ||
| References: | 1 | Groups: | php.bugs php.doc |
| Request: | Send a blank email to php-bugs+get-15907@lists.php.net to get a copy of this message | ||
ID: 18705
User updated by: ahristov@icygen.com
Reported By: ahristov@icygen.com
-Status: Feedback
+Status: Open
Bug Type: Documentation problem
Operating System: All
PHP Version: 4.2.2
New Comment:
Attention : Keep in mind that when you want whether there is substring
into string it is better to use strpos()
than to use strstr(). Most times users has problems to differentiate
the cases where the substring is found at position 0
and in the case where it is not found.
Example 2:
$needle = "I love";
$haystack = "I love PHP!";
//using strstr() - bad - exhaust of memory and cpu
if (strstr($haystack, $needle)){
// found
}
//using strpos() - good no exhaust of memory
if (strpos($haystack, $needle) === TRUE){
// found
}
-=-=-=-=-= End of example.
Previous Comments:
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[2002-08-02 11:43:56] kalowsky@php.net
Feel free to write the part you would like to see, submit it to this
bug, and it will hopefully (probably) be added to the documentation.
------------------------------------------------------------------------
[2002-08-02 09:00:23] ahristov@icygen.com
Is it possible more information to be added to the docs of strstr()
that it is better to look if there is needle in a haystack by using
strpos() - in bold. Even small example.
Regards,
Andrey Hristov
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Edit this bug report at http://bugs.php.net/?id=18705&edit=1