CODEWITHSUNDEEP
phpregex
Liz.
Liz.

Reputation: 815

replace a string inside a specific tag

I have a description field with user entering {tag}This has to be replaced{/tag} I want to replace the text with another. For this I am using the following code:

<?php
    $find = "/[^{tag}](.*)[^{\/tag}]/";
    $string = '{tag}This has to be replaced {/tag}';
    echo preg_replace($find, 'new text',$string);
?>

But I am not getting desired result. Also, in output I only want: new text . I don't want like this: {tag}New text{/tag}

Apart from this, how can I get the text between these tags ?

Kindly guide me on this

Upvotes: 2

Views: 2897

Answers (1)

Avinash Raj
Avinash Raj

Reputation: 174696

Use a non-greedy regex..

$find = '~{tag}.*?{/tag}~';
echo preg_replace($find, 'new text',$string);

If the text between tag /tag contain newline characters then you must use DOTALL modifier. 

$find = '~(?s){tag}.*?{/tag}~';

To get text between those tags, use capturing groups/.

$find = '~{tag}(.*?){/tag}~';
$out = preg_match($find, $str);
echo $out[1];

Upvotes: 3

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