Explode String twice using PHP

Question

I have seen two similar questions on SO here & here but still stuck...

I have a string of filepath like catalog/reviews/249532-20691-5369.jpg and i want to get numbers only like 249532-20691-5369.

I am using the following approach:

$id1 = explode('/', $image['img_link']);
$id2 = explode('.', $id1[2]);
echo $id2;  //output 249532-20691-5369

Is there any best approach to do this task in controller.

If the string is always in that form, this is a fine way of doing ths. If the string is ever different, regex may be a better option of the length of the numbers is always the same. — GrumpyCrouton, Dec 18 '18 at 13:42
You could use a regex if you really want to, but if what you have works for you, why worry. — Jonnix, Dec 18 '18 at 13:42
If you want to check the full path. `$image['img_link'] = "catalog/reviews/249532-20691-5369.jpg"; $id1 = explode('/', $image['img_link']); // loop to check array foreach($id1 as $id) { if (preg_match('~[0-9]+~', $id)) { // string with numbers $id2 = explode('.',$id); }}` — devasia2112, Dec 18 '18 at 14:00

Alex · Accepted Answer · 2018-12-18T13:49:26.343

7

https://ideone.com/XGwrTc

echo basename($image['img_link'], '.jpg');

an alternative if you have different file extensions:

echo pathinfo ( $image['img_link'] ,  PATHINFO_FILENAME );

edited Dec 18 '18 at 13:49

answered Dec 18 '18 at 13:43

Alex

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Beautifully simple! – Richard Dec 18 '18 at 13:44
But that still contains the .jpg file extension – Philipp Dec 18 '18 at 13:45
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@Philipp check updated – Alex Dec 18 '18 at 13:45
@Philipp No, this doesn't contain the extension – executable Dec 18 '18 at 13:46
@executable his first posted version didn't remove the suffix – Philipp Dec 18 '18 at 13:47
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what if extension is dynamic.... means...some images will have .jpg others will have .png or else... then how can i handle that – Muhammad Hashir Anwaar Dec 18 '18 at 13:47
@MuhammadHashirAnwaar check updated – Alex Dec 18 '18 at 13:49
Worked...Bravo ! – Muhammad Hashir Anwaar Dec 18 '18 at 13:51
@MuhammadHashirAnwaar If it worked, then you should accept the answer. – Ben Hillier Dec 18 '18 at 14:12
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@Alex , Accepted... (Y) – Muhammad Hashir Anwaar Dec 20 '18 at 07:04

Philipp · Answer 2 · 2018-12-18T13:55:47.247

1

In your case, you could use a simple regular expression.

([^\/]+)\.jpg$

And in php this would look like this

preg_match('/([^\/]+)\.jpg$/', $image['img_link'], $m);
echo $m[1];

If you need it for any extension, you could use this

([^\/]+)\.[^\.]+$

So how does this work:

We start from the right, so we add an anchor to the line ending $. From there on, we want the extension, which is practically everything expect a point [^\.]+. Whats left is the file name, which is everything from the point until you reach the slash [^\/]+. This part is also enclosed in a capturing group () to access it in the end with $m[1].

edited Dec 18 '18 at 13:55

answered Dec 18 '18 at 13:44

Philipp

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Great, thanks! The only thing I can think of that would make your answer even better is a breakdown of how the regex works, but obviously that's up to you. – GrumpyCrouton Dec 18 '18 at 13:52
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@GrumpyCrouton better? – Philipp Dec 18 '18 at 14:00

score 0 · Answer 3 · answered Dec 18 '18 at 13:43

0

explode returns an array, so you need to access the first element:

$ids = explode('/', $image['img_link'];
$id2 = explode('.', end($ids));

echo $id2[0];

Alternatively, you can just use basename() instead of the first explode() (assuming you always have .jpg extension):

echo basename($image['img_link'], '.jpg');

answered Dec 18 '18 at 13:43

BenM

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if extension is dynamic then??? – Muhammad Hashir Anwaar Dec 18 '18 at 13:48

GrumpyCrouton · Answer 4 · 2018-12-18T13:51:27.417

0

You could use Regex

This pattern would work:

(\d{6}-\d{5}-\d{4})

Breakdown:

\d means "Any Digit"
{#} means a count of # values, and of course the dashes between the numbers.
Wrap the whole thing with parenthesis to capture the whole result

Code:

$string = "catalog/reviews/249532-20691-5369.jpg";

preg_match('(\d{6}-\d{5}-\d{4})', $string, $result);
echo $result[0];

Output:

249532-20691-5369

edited Dec 18 '18 at 13:51

answered Dec 18 '18 at 13:45

GrumpyCrouton

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Explode String twice using PHP

4 Answers4