Replace only first match using preg_replace [duplicate]
I have a string with structure similar to: 'aba aaa cba sbd dga gad aaa cbz'
. The string can be a bit different each time as it's from an external source.
I would like to replace only first occurrence of 'aaa'
but not the others. Is it possible?
The optional fourth parameter of preg_replace is limit
:
preg_replace($search, $replace, $subject, 1);
You can use the limit
argument of preg_replace
for this and set it to 1
so that at most one replacement happens:
$new = preg_replace('/aaa/','replacement',$input,1);