PHP - Normalize user input array

Question

If have an array like this:

array
  0 => string '62 52, 53' (length=9)
  1 => string '54' (length=2)

It's from user input, and you never know how/what they enter ;)

What I want in the end is this:

array
  0 => string '62' (length=2)
  1 => string '52' (length=2)
  2 => string '53' (length=2)
  3 => string '54' (length=2)

Here's how I do it:

  $string = implode(',', $array);
  $string = str_replace(', ', ',', $string);
  $string = str_replace(' ', ',', $string);
  $array = explode(',', $string);

Seems really clunky. Is there a more elegant way? One that maybe has better performance?

Dan Grossman · Accepted Answer · 2010-12-16 09:53:58Z

4

On each string:

preg_match_all("/[ ,]*(\d+)[ ,]*/", $list, $matches);

Then read $matches[1] for the numbers

answered Dec 16, 2010 at 9:53

Dan Grossman

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BoltClock · Accepted Answer · 2010-12-16 09:55:09Z

2

Not sure about performance but you can use a regex to grab only numbers after you join everything into a string.

$string = implode(' ', $array);
preg_match_all('/\d+/', $string, $matches);
print_r($matches[0]);

answered Dec 16, 2010 at 9:55

BoltClock

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Comments

Massimog · Accepted Answer · 2010-12-16 09:55:03Z

0

You may want to use preg_split and array_merge (PHP 4, PHP 5)

answered Dec 16, 2010 at 9:55

Massimog

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