How do you detect if a specific word is at the end of a string in php

Question

I have event listings that look like this

PAPA ROACH AT THE PARAMOUNT IN HUNTINGTON ON APR 28, 2015

Im trying to remove everything after the last "ON"

$s="PAPA ROACH AT THE PARAMOUNT IN HUNTINGTON ON APR 28, 2015";
echo strstr($s, 'ON', true);

I came up with something like this but it removes everything after the first "ON" it detects, is there a way to run this backwards or tell to skip to the last "ON"

Are they always separated by white space? If so, try ' ON ' instead. — bpinhosilva, Apr 28 '15 at 23:10
http://stackoverflow.com/questions/834303/startswith-and-endswith-functions-in-php — developerwjk, Apr 28 '15 at 23:12
Find the last position of a substring with [strrpos](http://php.net/manual/en/function.strrpos.php), then use `substr()` to get what you need. — , Apr 28 '15 at 23:13

astax · Accepted Answer · 2015-04-28T23:22:30.667

1

You can use strrpos function to perform search from the end of the string:

$s="PAPA ROACH ON THE PARAMOUNT IN HUNTINGTON ON APR 28, 2015";
echo substr($s, 0, strrpos($s, ' ON ') + 3); // +3 is to include the word ON

edited Apr 28 '15 at 23:22

answered Apr 28 '15 at 23:12

astax

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I think in order to get the word ON you need to search for ' ON ' including withe spaces, otherwise it will stop by the first occurrence. – bpinhosilva Apr 28 '15 at 23:21

How do you detect if a specific word is at the end of a string in php

1 Answers1