PHP - Return everything after delimiter

Question

There are similar questions in SO, but I couldn't find any exactly like this. I need to remove everything up to (and including) a particular delimiter. For example, given the string File:MyFile.jpg, I need to remove everything up to the :, so that I'm left with only MyFile.jpg. Thanks in advance!

I thought of `substr`, but the length of the substring before the delimiter may vary. I guess I need to combine it with `strpos`, but haven't figured the best way yet. — Sophivorus, Apr 19 '13 at 12:38

anubhava · Answer 1 · 2013-04-19T12:53:53.657

9

Use this preg_replace call:

$str = 'File:MyFile.jpg';
$repl = preg_replace('/^[^:]*:/', '', $str); // MyFile.jpg

OR else avoid regex and use explode like this:

$repl = explode(':', $str)[1]; // MyFile.jpg

EDIT: Use this way to avoid regex (if there can be more than one : in string):

$arr = explode(':', 'File:MyFile.jpg:foo:bar');
unset($arr[0]);
$repl = implode(':', $arr); // MyFile.jpg:foo:bar

edited Apr 19 '13 at 12:53

answered Apr 19 '13 at 12:36

anubhava

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Note: `explode(':', $str)[1]` doesn't work in PHP (upto 5.3.8 at least) – Ejaz Apr 19 '13 at 12:41
Absolutely right @Ejay, `explode(':', $str)[1]` works since PHP 5.4 :) – pmayer Apr 19 '13 at 12:42
Regular expressions for such a simple task? – Sophivorus Apr 19 '13 at 12:44
As to the `explode`, if there is more than one `:` it won't work, right? – Sophivorus Apr 19 '13 at 12:46
@FelipeSchenone: If there can be more than one `:` in the string then you can either use preg_replace or use my edited answer on explode. – anubhava Apr 19 '13 at 12:52
I wouldn't recommend using explode, as it causes more issues if there is more than one delimiter . – Ravindra Shekhawat Apr 19 '13 at 12:58

score 4 · Accepted Answer · edited Apr 19 '13 at 13:15

4

EDIT: this one works fine.

$str = "File:MyFile.jpg";
$str = substr( $str, ( $pos = strpos( $str, ':' ) ) === false ? 0 : $pos + 1 );

edited Apr 19 '13 at 13:15

Sophivorus

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answered Apr 19 '13 at 12:37

Ravindra Shekhawat

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Code-only answers aren't really helpful. Please add some explanation. – nalply Apr 19 '13 at 12:55
1

Beautiful answer, thanks. Could be simplified to `substr( $str, strpos( $str, ':' ) )` if one knew that the `:` _does_ appear in the string. – Sophivorus Apr 19 '13 at 13:13
thats why used another substr :-) – Ravindra Shekhawat Apr 19 '13 at 13:24

John Miller · Answer 3 · 2017-02-19T13:21:39.490

Shorter codes:

To return everything BEFORE the FIRST occurence of a character, use strtok. Example:

strtok(16#/en/go, '#') will return 16

To return everything AFTER the FIRST occurence of a character, use strstr. Example:

strstr(16#/en/go, '#') will return #/en/go (Includes search character '#')
substr(strstr(16#/en/go, '#'), 1) will return /en/go

To return everything AFTER the LAST occurrence of a character, use strrchr. Example:

strrchr(16#/en/go, '/') will return /go (Includes search character '/')
substr(strrchr(16#/en/go/, '/'), 1) will return go

score 1 · Answer 4 · answered Apr 19 '13 at 12:37

1

You could use explode to do this: link.

Something like:

$string = "File:MyFile.jpg";
list($protocol,$content) = explode(":", $string);
echo $content;

answered Apr 19 '13 at 12:37

Glitch Desire

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score 1 · Answer 5 · answered Apr 19 '13 at 14:28

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    $str = "File:MyFile.jpg";

    $position = strpos($str, ':');//get position of ':'

    $filename= substr($str, $position+1);//get substring after this position

answered Apr 19 '13 at 14:28

Aris

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Yes, this should be the accepted answer ... most sensible, brief and efficient. Can be shortened as: `substr($str, strrpos($str, ":")+1);` – davea0511 Apr 16 '15 at 21:35
...but this fails if the delimiter is not found ...which is why is should NOT be the accepted answer. – mickmackusa Jun 29 '21 at 04:34

score 0 · Answer 6 · answered Apr 19 '13 at 12:37

0

Two simple ways:

$filename = str_replace('File:', '', 'File:MyFile.jpg');

or

$filename = explode(':', 'File:MyFile.jpg');
$filename = $filename[1];

answered Apr 19 '13 at 12:37

pmayer

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The first one will work for the example, but not in the general case. The second one seems like an answer! – Sophivorus Apr 19 '13 at 12:40

score 0 · Answer 7 · answered Mar 30 '15 at 15:24

Sample String:

$string = 'value:90|custom:hey I am custom message|subtitute:array';

convert string to array

$var = explode('|', $string);

Check Results:

Array(
[0] => value:90
[1] => custom:hey I am custom message
[2] => subtitute:array)

Declare an array variable

$pipe = array();

Loop through string array $var

foreach( $var as $key => $value ) {
  // get position of colon
  $position = strrpos( $value, ':' );
  // get the key
  $key = substr( $value, 0, $position );
  //get the value
  $value = substr( $value, $position + 1 );
  $pipe[$key] = $value; }

Final Result:

Array(
[value] => 90
[custom] => hey I am custom message
[subtitute] => array)

PHP - Return everything after delimiter

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