Split a string at last occurrence of a particular character string REGEX

Question

I have a string:

buynaturallesunfloweroil1ltrat78rupees

now this string have two occurrences of at. I want to split the string atgetorlast occurrence of at.`

Some strings can be like buynaturallesunfloweroilget1ltrat78rupees

buynaturallesunfloweroil1ltrat78rupees.

I want to split the string such that:

Arr[0] = buynaturallesunfloweroil1ltr

Arr[1] = 78rupees

Basically I have to split the string at last occurence of at. I am not very good at preg_split.

Thanks in advance.

See here http://stackoverflow.com/questions/3835636/php-replace-last-occurence-of-a-string-in-a-string — u_mulder, Dec 14 '16 at 06:51

Mustofa Rizwan · Accepted Answer · 2016-12-14T06:58:31.417

1

Try this:

(.*)at(.*)

You get Arr[0] in group 1
Arr1 in group 2

Explanation

Sample Code:

<?php

$re = '/(.*)at(.*)/s';
$str = 'buynaturallesunfloweroil1ltrat78rupees';

preg_match_all($re, $str, $matches);

// Print the entire match result
print_r($matches);

?>

edited Dec 14 '16 at 06:58

answered Dec 14 '16 at 06:52

Mustofa Rizwan

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and the reason is ? – Mustofa Rizwan Dec 14 '16 at 06:53
`preg_split("/(.*)at(.*)/", "buynaturallesunfloweroil1ltrat78rupees"); ` is giving me empty array. – Jagrati Dec 14 '16 at 06:57
what if I want only arr[0] and arr[1]. `$matches` give me actually array of size 3. – Jagrati Dec 14 '16 at 07:01
No, as it will break at each instance of 'at' – Mustofa Rizwan Dec 14 '16 at 07:01
1

if you don't understand how regex thing work, then you need to know that, index zero contains the full match (full string) , and then comes the capture groups which is group 1 and 2 – Mustofa Rizwan Dec 14 '16 at 07:02

score 1 · Answer 2 · answered Dec 14 '16 at 07:00

1

Try this :

<?php
 $str = "buynaturallesunfloweroil1ltrat78rupees";

echo $filename = substr($file, 0, strrpos($str, 'at')); echo '---';
echo $extension = substr($file, strrpos($str, 'at') + 2);

?>

answered Dec 14 '16 at 07:00

prakash tank

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what is $file here ? and $extension ? – Mustofa Rizwan Dec 14 '16 at 07:14

score 1 · Answer 3 · answered Dec 14 '16 at 07:06

1

Here is the code :

$str = "buynaturallesunfloweroil1ltrat78rupees";
$arr = explode('at', $str);
print_r(end($arr));

I hope this will help

answered Dec 14 '16 at 07:06

Rahul

18,271
7
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score 1 · Answer 4 · answered Dec 14 '16 at 07:45

1

Sorry for my above answer. it was not fully functional:

here find the answer :

$str = "buynaturallesunfloweroil1ltrat78rupees";
echo $first = substr($str, 0, strrpos($str, 'at')); echo '---';
echo $second = substr($str, strrpos($str, 'at') + 2);

answered Dec 14 '16 at 07:45

prakash tank

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you've posted 2 identical answers(by approach), why? – RomanPerekhrest Dec 14 '16 at 07:50
@RomanPerekhrest : the frist answer was not right and the naming convenstions were not proper. – prakash tank Dec 14 '16 at 07:51
so remove the improper one – RomanPerekhrest Dec 14 '16 at 07:53

Split a string at last occurrence of a particular character string REGEX

4 Answers4