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I want to know how to replace some text in php string to different values using preg_replace.

For example :

I want this result :

I have used this code :

$string = 'http://www.mysite.com/?uid=123456<br/>
            http://www.mysite.com/?uid=123456<br/>
            http://www.mysite.com/?uid=123456';

$string = preg_replace(array("~123456~", "~123456~", "~123456~"), array("456789","789456","159753"), $string);

echo $string;

but it gives me this result :

Any help ?

Thanks !

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How are you getting the uid numbers in the result you want? They look random? –  Phil Cross May 30 at 15:43
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2 Answers

up vote 0 down vote accepted

Try:

$string = 'http://www.mysite.com/?uid=123456<br/>
        http://www.mysite.com/?uid=123456<br/>
        http://www.mysite.com/?uid=123456';

$newString = preg_replace_callback('/([0-9]{6})/im', function($matches){ return rand(100000, 999999); }, $string);
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It works, thank you :) –  aimadnet May 30 at 15:53
 
@aimadnet , Upvote or accept answer? :) –  Phil Cross May 30 at 16:04
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up vote 1 down vote

you can test "~http://www\.mysite\.com/\?uid\=([0-9]+)~si" it find all with different uid value and you can use preg_replace_callback for check and replace them

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Thanks for your help, it works :) –  aimadnet May 30 at 15:54
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