1 files changed, 85 insertions, 0 deletions
diff --git a/ext/standard/tests/array/usort_variation8.phpt b/ext/standard/tests/array/usort_variation8.phpt
new file mode 100644
index 0000000..87107f8
--- /dev/null
+++ b/ext/standard/tests/array/usort_variation8.phpt
@@ -0,0 +1,85 @@
+--TEST--
+Test usort() function : usage variations - use built in functions as $cmp_function arg
+--FILE--
+<?php
+/* Prototype  : bool usort(array $array_arg, string $cmp_function)
+ * Description: Sort an array by values using a user-defined comparison function 
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test usort() when comparison function is:
+ * 1. a built in comparison function
+ * 2. a language construct
+ */
+
+echo "*** Testing usort() : usage variation ***\n";
+
+// Initializing variables
+$array_arg = array("b" => "Banana", "m" => "Mango", "a" => "apple", 
+                   "p" => "Pineapple", "o" => "orange");
+
+// Testing library functions as comparison function 
+echo "\n-- Testing usort() with built-in 'cmp_function': strcasecmp() --\n";
+$temp_array1 = $array_arg;
+var_dump( usort($temp_array1, 'strcasecmp') );
+var_dump($temp_array1);
+
+echo "\n-- Testing usort() with built-in 'cmp_function': strcmp() --\n";
+$temp_array2 = $array_arg;
+var_dump( usort($temp_array2, 'strcmp') );
+var_dump($temp_array2);
+
+// Testing with language construct as comparison function
+echo "\n-- Testing usort() with language construct as 'cmp_function' --\n";
+$temp_array3 = $array_arg;
+var_dump( usort($temp_array3, 'echo') );
+
+echo "\n-- Testing usort() with language construct as 'cmp_function' --\n";
+$temp_array4 = $array_arg;
+var_dump( usort($temp_array4, 'exit') );
+?>
+===DONE===
+--EXPECTF--
+*** Testing usort() : usage variation ***
+
+-- Testing usort() with built-in 'cmp_function': strcasecmp() --
+bool(true)
+array(5) {
+  [0]=>
+  string(5) "apple"
+  [1]=>
+  string(6) "Banana"
+  [2]=>
+  string(5) "Mango"
+  [3]=>
+  string(6) "orange"
+  [4]=>
+  string(9) "Pineapple"
+}
+
+-- Testing usort() with built-in 'cmp_function': strcmp() --
+bool(true)
+array(5) {
+  [0]=>
+  string(6) "Banana"
+  [1]=>
+  string(5) "Mango"
+  [2]=>
+  string(9) "Pineapple"
+  [3]=>
+  string(5) "apple"
+  [4]=>
+  string(6) "orange"
+}
+
+-- Testing usort() with language construct as 'cmp_function' --
+
+Warning: usort() expects parameter 2 to be a valid callback, function 'echo' not found or invalid function name in %s on line %d
+NULL
+
+-- Testing usort() with language construct as 'cmp_function' --
+
+Warning: usort() expects parameter 2 to be a valid callback, function 'exit' not found or invalid function name in %s on line %d
+NULL
+===DONE===
+\ No newline at end of file