strict types for replaceFirst

Author: fey

src/Illuminate/Support/Str.php

@@ -501,7 +501,8 @@ public static function replaceArray($search, array $replace, $subject)
      */
     public static function replaceFirst($search, $replace, $subject)
     {
-        if ($search == '') {
+        $search = (string)$search;
+        if ($search === '') {
             return $subject;
         }
 

tests/Support/SupportStrTest.php

@@ -348,6 +348,7 @@ public function testReplaceFirst()
         $this->assertSame('foo foobar', Str::replaceFirst('bar', '', 'foobar foobar'));
         $this->assertSame('foobar foobar', Str::replaceFirst('xxx', 'yyy', 'foobar foobar'));
         $this->assertSame('foobar foobar', Str::replaceFirst('', 'yyy', 'foobar foobar'));
+        $this->assertSame('1', Str::replaceFirst(0, '1', '0'));
         // Test for multibyte string support
         $this->assertSame('Jxxxnköping Malmö', Str::replaceFirst('ö', 'xxx', 'Jönköping Malmö'));
         $this->assertSame('Jönköping Malmö', Str::replaceFirst('', 'yyy', 'Jönköping Malmö'));