I have just realised that I have to delimit the following characters so I can use preg_replace:
/
?
[
]
Is there any php command to delimit all of these characters as I am getting the string I am trying to replace from the database.
eg.
\?
Any ideas
John
John Clegg wrote:
Hi Joel,
Thanks for the reply.
I have tried using "/" to delimit the string and I get the following error
String
$url = "/http://www.foo.com/maxbid/Unsubscribe.php?EmailAddress=[MAIL]/";;
Gives the error: *Warning*: Unknown modifier '/' in* /test.php* on line *8*
I found out that I could use ' to delimit from Example 5 in the php manual page for preg_replace.
Also I need to replace only one occurance of the string at a time, so I can't use str_replace :-( .
Any other suggestions??
Cheers
John
joel boonstra wrote:
On Mon, Jan 19, 2004 at 06:50:37PM +0200, John Clegg wrote:
Hi
I am having some problems with preg_replace and I wondering if someone could suggest a fix or explain why it is not working.
Here is the Code:
*********************
<?php
$code = "blah http://www.foo.com/Unsubscribe.php?EmailAddress=[MAIL] blah";
$url = "'http://www.foo.com/maxbid/Unsubscribe.php?EmailAddress=[MAIL]'";
echo "BEFORE : $code<br><br>";
$replace = "Foo";
$code = preg_replace($url,$replace,$code,1);
echo "AFTER: $code<br>";
?>
**********************
Here is the results of the script:
**********************
BEFORE : blah http://www.qxlmaxbid.com/maxbid/Unsubscribe.php?EmailAddress=[MAIL] blah
AFTER: blah http://www.qxlmaxbid.com/maxbid/Unsubscribe.php?EmailAddress=[MAIL] blah
**********************
It should give the following result:
**********************
AFTER: blah Foo blah
**********************
preg_replace expects the first argument to be a pattern, which should be enclosed in forward slashes ("//"). So your $url variable should be surrounded with slashes. You have single quotes in your $url variable, but I don't think that PHP behaves like perl in letting you use whichever delimiter you choose. Try replacing the single quotes with forward slashes.
Additionally, if you're only doing a simple string substitution, you should use str_replace instead:
http://php.net/str_replace
You won't need the "/" delimiters, and it will be faster than using preg_replace.
joel
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