How to remove any special character from php array?

Question

I have array like:

$temp = array (".com",".in",".au",".cz");

I want result as:

$temp = array ("com","in","au","cz");

I got result by this way:

$temp = explode(",",str_replace(".","",implode(",",$temp)));

But is there any php array function with we can directly remove any character from all values of array? I tried and found only spaces can be removed with trim() but not for any character.

http://stackoverflow.com/questions/3022185/regular-expression-sanitize-php — Reuben L., Aug 28 '14 at 05:51

John Robertson · Accepted Answer · 2014-08-28T05:55:46.837

17

Use preg_replace function. This will replace anything that isn't a letter, number or space.

SEE DEMO

<?php
$temp = array (".com",".in",".aus",".cz");
$temp = preg_replace("/[^a-zA-Z 0-9]+/", "", $temp );
print_r($temp);

//outputs
Array
(
    [0] =>  com
    [1] =>  in
    [2] =>  aus
    [3] =>  cz
)

?>

edited Aug 28 '14 at 05:55

answered Aug 28 '14 at 05:48

John Robertson

1,486
13
16

Replace with an empty string, not with a space – Hanky Panky Aug 28 '14 at 05:50
yea exactly... empty string should be pass in function otherwise it returns as " com". – Swapnil Chaudhari Aug 28 '14 at 05:53
@swap7927 You're welcome. I was happy to do it. I know you'll do the same for someone else – John Robertson Aug 28 '14 at 06:05

Saswat · Answer 2 · 2014-08-28T05:59:24.347

I generaly make a function

function make_slug($data)
     {
         $data_slug = trim($data," ");
         $search = array('/','\\',':',';','!','@','#','$','%','^','*','(',')','_','+','=','|','{','}','[',']','"',"'",'<','>',',','?','~','`','&',' ','.');
         $data_slug = str_replace($search, "", $data_slug);
         return $data_slug;
     }

And then call it in this way

$temp = array (".com",".in",".au",".cz");


for($i = 0; $i<count($temp); $i++)
{
    $temp[$i] = make_slug($temp[$i]);
}

print_r($temp);

Each value of $temp will then become free of special characters

See the Demo

Rubin Porwal · Answer 3 · 2014-09-04T05:09:58.983

0

As a solution to your problem please execute the following code snippet

    $temp = array (".com",".in",".au",".cz");
    function strip_special_chars($v)
    {
        return str_replace('.','',$v);
    }
    $result[]=array_map('strip_special_chars',$temp);

edited Sep 04 '14 at 05:09

answered Aug 28 '14 at 06:05

Rubin Porwal

3,736
1
23
26

check ur code before posting ans. it does not work.str_replace works for string only not php array. – Swapnil Chaudhari Aug 28 '14 at 06:06

But those new buttons though.. · Answer 4 · 2020-02-25T20:56:05.080

Actually trim() can trim any character(s) you wish if you provide the 2nd argument (character mask). As it's name implies, this will only remove characters from the beginning and end of the string. In your case ltrim() may be more appropriate.

You can use array_map() and ltrim() together with a third parameter for the character mask like this:

$temp = array_map('ltrim', $temp, array_fill(0, count($temp), '.'));

The third parameter should be an array of arguments matching the length of the array you're processing, which is why I used array_fill() to create it.

How to remove any special character from php array?

4 Answers4