Don't use >= as sorting condition

which could avoid breaking usage like:

usort($a, function($a, $b) { return $a > $b; })

1 files changed, 25 insertions, 0 deletions

diff --git a/ext/standard/tests/array/usort_variation11.phpt b/ext/standard/tests/array/usort_variation11.phpt
new file mode 100644
index 0000000000..b6cdeef766
--- /dev/null
+++ b/ext/standard/tests/array/usort_variation11.phpt
@@ -0,0 +1,25 @@
+--TEST--
+Test usort() function : usage variations - binary return cmp
+--FILE--
+<?php
+
+function ucmp($a, $b) {
+	return $a > $b;
+}
+
+$range = array(2, 4, 8, 16, 32, 64, 128);
+
+foreach ($range as $r) {
+	$backup = $array = range(0, $r);
+	shuffle($array);
+	usort($array, "ucmp");
+	if ($array != $backup) {
+		var_dump($array);
+		var_dump($backup);
+		die("Whatever sorting algo you used, this test should never be broken");
+	}
+}
+echo "okey";
+?>
+--EXPECT--
+okey