By John Koster
The replaceFirst
helper method is used to replace the first occurrence of a given $search
string with the provided $replace
string in the $subject
string. All three parameters are required and must be strings.
#Signature
The signature of the replaceMethod
is:
1public static function replaceFirst(
2 $search,
3 $replace,
4 $subject
5 );
#Example Use
The following examples highlight the basic usage of the replaceFirst
method. The results of the method call will appear above the call as a comment.
1use Illuminate\Support\Str;
2
3// //maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css
4Str::replaceFirst(
5 'http://', '//',
6 'http://maxcdn.bootstrapcdn.com/bootstrap/' .
7 '3.3.6/css/bootstrap.min.css'
8);
9
10// Hello, there!
11Str::replaceFirst('there', 'Hello', 'there, there!');
#Global str_replace_first
Helper Function
The str_replace_first
function is a shortcut to calling Str::replaceFirst
. This function is declared in the global namespace.
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