CODEWITHSUNDEEP
phpregexpreg-replace
Bhumi Shah
Bhumi Shah

Reputation: 9476

preg_replace to replace the number in substring php

I have below string

$string = 'id="0000001" did="659" interval="2" media.jpg'

I want to replace 2 (value is dynamic 0 to 1000) in interval tag with 0. How can I do it?

I tried following code but it replaces all

$returnValue = preg_replace('/\\d+/', '0', $string, -1, $count);

Upvotes: 0

Views: 78

Answers (2)

mocak
mocak

Reputation: 405

This is an another way to do this without using lookbehind assertion however using lookbehind is much cooler.

preg_replace('/(interval=")(\d+)/','${1}0', $string, -1, $count);

Upvotes: 0

vks
vks

Reputation: 67968

$returnValue = preg_replace('/(?<=interval=")\\d+/', '0', $string, -1, $count);

Just include a lookbehind stating interval=" should be present before the \\d+ you are trying to find.

Upvotes: 4

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