How do I delete the first instance of a substring in another string with PHP? Thanks.
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This is a duplicate, please see: stackoverflow.com/questions/3145290/… A solution is provided there.bimbom22– bimbom222010-07-12 03:01:11 +00:00Commented Jul 12, 2010 at 3:01
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3 Answers
Something like this may do the trick.
function replaceFirst($input, $search, $replacement){
$pos = stripos($input, $search);
if($pos === false){
return $input;
}
else{
$result = substr_replace($input, $replacement, $pos, strlen($search));
return $result;
}
}
$input = "This is a test. This is only a test.";
$search = "test";
echo replaceFirst($input, $search, "replaced!");
// "This is a replaced!. This is only a test."
Sorry for all the edits, had some weird formatting issues.
Comments
Try something with the general idea of this:
$search = "boo";
$str = "testtestbootest";
$pos = strpos(strrev($str), strrev($search));
$newstr = substr($str, 0, $pos) . substr($str, $pos + strlen($search));
Comments
if your regex skills are up to it use preg_replace, with a limit = 1
mixed preg_replace ( mixed $pattern , mixed $replacement , mixed $subject [, int $limit = -1 [, int &$count ]] )
