- MFH ?: operator (Marcus)

  [DOC] "expr1 ?: expr1" is a shortcut for: "expr1 ? expr1 : expr2" as
        exists in gcc and discussed some time back. Note that this is not
        an implementation ifsetor($var, default). While ifsetor would not
        generate any message for non existing variables or array indices
        the ternary shortcut does. Also the ternary shortcut does a boolean
        evaluation rather then checking for isset(). That way ther ternary
        shortcut can work on any expression while ifsetor can only work on
        variables. Also to be silent one has do do: "@$expr1 ?: $expr2".

1 files changed, 27 insertions, 0 deletions

diff --git a/Zend/tests/021.phpt b/Zend/tests/021.phpt
new file mode 100644
index 0000000000..99fdb50258
--- /dev/null
+++ b/Zend/tests/021.phpt
@@ -0,0 +1,27 @@
+--TEST--
+?: operator
+--FILE--
+<?php
+var_dump(true ?: false);
+var_dump(false ?: true);
+var_dump(23 ?: 42);
+var_dump(0 ?: "bar");
+
+$a = 23;
+$b = 0;
+$c = "";
+$d = 23.5;
+
+var_dump($a ?: $b);
+var_dump($c ?: $d);
+
+var_dump(1 ?: print(2));
+?>
+--EXPECT--
+bool(true)
+bool(true)
+int(23)
+string(3) "bar"
+int(23)
+float(23.5)
+int(1)