CODEWITHSUNDEEP
phpregex
Jonathen Mayers
Jonathen Mayers

Reputation: 13

Remove text from string/url

i have many urls(string):

        $one = 'http://www.site.com/first/1/two/2/three/3/number/342';
        $two = '/first/1/two/2/number/32';
        $three = 'site.com/first/1/three/3/number/7';
        $four = 'http://www.site.com/first/13/two/2/three/33/number/33/four/23';

how can i remove for this variables /number/x with PHP? for my examples should be:

    $one = 'http://www.site.com/first/1/two/2/three/3';
    $two = '/first/1/two/2';
    $three = 'site.com/first/1/three/3';
    $four = 'http://www.site.com/first/13/two/2/three/33/four/23';

Upvotes: 1

Views: 344

Answers (2)

Wil Moore III
Wil Moore III

Reputation: 7204

I would suggest the following pattern:

'@/number/[0-9]{1,}@i'

The reasons are:

  1. The i modifier will catch urls like '/NumBer/42'
  2. Using @ to delimit the pattern makes for a much more readable pattern and mitigates the need to escape slashes (e.g. \/\d+)
  3. While [0-9]{1,} is more verbose than \d+, it has the added benefit of being much more intention revealing.

Below is a demo of it's usage:

<?php

$urls[] = 'http://www.site.com/first/1/two/2/three/3/number/342';
$urls[] = '/first/1/two/2/number/32';
$urls[] = 'site.com/first/1/three/3/number/7';
$urls[] = 'http://www.site.com/first/13/two/2/three/33/number/33/four/23';
$urls[] = '/first/1/Number/55/two/2/number/32';

$actual = array_map(function($url){
  return preg_replace('@/number/[0-9]{1,}@i', '', $url);
}, $urls);

$expected = array(
  'http://www.site.com/first/1/two/2/three/3',
  '/first/1/two/2',
  'site.com/first/1/three/3',
  'http://www.site.com/first/13/two/2/three/33/four/23',
  '/first/1/two/2'
);

assert($expected === $actual); // true

Upvotes: 0

Rawkode
Rawkode

Reputation: 22592

$one = 'http://www.site.com/first/1/two/2/number/33/three/3';
$one = preg_replace('/\/number\/\d+/', '', $one);
echo $one;

Upvotes: 3

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