PHP remove all characters before specific string

Question

I need to remove all characters from any string before the occurrence of this inside the string:

"www/audio"

Not sure how I can do this.

You might find [`s($str)->afterFirst('www/audio')`](https://github.com/delight-im/PHP-Str/blob/8fd0c608d5496d43adaa899642c1cce047e076dc/src/Str.php#L435) or [`s($str)->afterLast('www/audio')`](https://github.com/delight-im/PHP-Str/blob/8fd0c608d5496d43adaa899642c1cce047e076dc/src/Str.php#L445) helpful, as found in [this standalone library](https://github.com/delight-im/PHP-Str). — caw, Jul 27 '16 at 00:33
For the single character, check: [How to remove everything before the first specific character in a string?](https://stackoverflow.com/q/5329866/55075) — kenorb, Nov 21 '18 at 13:26

score 195 · Accepted Answer · answered Oct 18 '11 at 05:36

195

You can use strstr to do this.

echo strstr($str, 'www/audio');

answered Oct 18 '11 at 05:36

xdazz

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Quick note: you can use `strstr()` to return the part of the string that comes **before** its argument too by calling `echo strstr($str, 'www/audio', true);` – cfx Aug 09 '13 at 11:30

score 23 · Answer 2 · answered Oct 18 '11 at 05:39

23

Considering

$string="We have www/audio path where the audio files are stored";  //Considering the string like this

Either you can use

strstr($string, 'www/audio');

Or

$expStr=explode("www/audio",$string);
$resultString="www/audio".$expStr[1];

answered Oct 18 '11 at 05:39

Wazy

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string functions are generally faster than array functions – Anyone Jan 18 '14 at 11:20
4

The explode is in fact a better answer, as the question was about _removing_ the text before the string. – Borjovsky Feb 29 '16 at 14:13
1

explode could cause problems if you had multiple occurrences of the same string you were trying to remove - e.g. "we have www/audio path where the www/audio files are stored" would result in "path where the" if you wanted to use explode you could do something like foreach ( $expStr as $key => $value ) echo ( $key == 0 ? '' : 'www/audio'.$value ) ; or foreach ( $expStr as $key => $value ) echo ( $key == 0 ? '' : ( $key == 1 ? '' : 'www/audio' ).$value ) ; if you wanted to omit the initial www/audio. – TheKLF99 Mar 18 '19 at 07:47

score 2 · Answer 3 · edited Dec 29 '13 at 04:44

I use this functions

function strright($str, $separator) {
    if (intval($separator)) {
        return substr($str, -$separator);
    } elseif ($separator === 0) {
        return $str;
    } else {
        $strpos = strpos($str, $separator);

        if ($strpos === false) {
            return $str;
        } else {
            return substr($str, -$strpos + 1);
        }
    }
}

function strleft($str, $separator) {
    if (intval($separator)) {
        return substr($str, 0, $separator);
    } elseif ($separator === 0) {
        return $str;
    } else {
        $strpos = strpos($str, $separator);

        if ($strpos === false) {
            return $str;
        } else {
            return substr($str, 0, $strpos);
        }
    }
}

This works well for multiple occurrences of the same string. Thanks! — davykiash, Jun 12 '19 at 05:20
for right remove - from the substr to get complete string after the first occurance of the seperator — Aditya, Nov 02 '20 at 09:58

score 0 · Answer 4 · answered Oct 18 '11 at 05:37

0

You can use substring and strpos to accomplish this goal.

You could also use a regular expression to pattern match only what you want. Your mileage may vary on which of these approaches makes more sense.

answered Oct 18 '11 at 05:37

thedayturns

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PHP remove all characters before specific string

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