--- /dev/null
+--TEST--
+str_replace() tests
+--FILE--
+<?php
+
+var_dump(str_replace("", "", ""));
+
+var_dump(str_replace("e", "b", "test"));
+
+var_dump(str_replace("", "", "", $count));
+var_dump($count);
+
+var_dump(str_replace("q", "q", "q", $count));
+var_dump($count);
+
+var_dump(str_replace("long string here", "", "", $count));
+var_dump($count);
+
+var_dump(str_replace(chr(0), "a", "", $count));
+var_dump($count);
+
+var_dump(str_replace(chr(0), "a", chr(0), $count));
+var_dump($count);
+
+var_dump(str_replace("multi", "a", "aaa", $count));
+var_dump($count);
+
+var_dump(str_replace("a", "multi", "aaa", $count));
+var_dump($count);
+
+var_dump(str_replace(array("a", "a", "b"), "multi", "aaa", $count));
+var_dump($count);
+
+var_dump(str_replace(array("a", "a", "b"), array("q", "q", "c"), "aaa", $count));
+var_dump($count);
+
+var_dump(str_replace(array("a", "a", "b"), array("q", "q", "c"), array("aaa", "bbb"), $count));
+var_dump($count);
+
+var_dump(str_replace("a", array("q", "q", "c"), array("aaa", "bbb"), $count));
+var_dump($count);
+
+var_dump(str_replace("a", 1, array("aaa", "bbb"), $count));
+var_dump($count);
+
+var_dump(str_replace(1, 3, array("aaa1", "2bbb"), $count));
+var_dump($count);
+
+$fp = fopen(__FILE__, "r");
+var_dump(str_replace($fp, $fp, $fp, $fp));
+var_dump($fp);
+
+echo "Done\n";
+?>
+--EXPECTF--
+string(0) ""
+string(4) "tbst"
+string(0) ""
+int(0)
+string(1) "q"
+int(1)
+string(0) ""
+int(0)
+string(0) ""
+int(0)
+string(1) "a"
+int(1)
+string(3) "aaa"
+int(0)
+string(15) "multimultimulti"
+int(3)
+string(15) "multimultimulti"
+int(3)
+string(3) "qqq"
+int(3)
+array(2) {
+ [0]=>
+ string(3) "qqq"
+ [1]=>
+ string(3) "ccc"
+}
+int(6)
+
+Notice: Array to string conversion in %s on line %d
+array(2) {
+ [0]=>
+ string(15) "ArrayArrayArray"
+ [1]=>
+ string(3) "bbb"
+}
+int(3)
+array(2) {
+ [0]=>
+ string(3) "111"
+ [1]=>
+ string(3) "bbb"
+}
+int(3)
+array(2) {
+ [0]=>
+ string(4) "aaa3"
+ [1]=>
+ string(4) "2bbb"
+}
+int(1)
+string(%d) "Resource id #%d"
+int(1)
+Done