Engine execution order tests

tests/lang/execution_order.phpt

@@ -0,0 +1,198 @@
+--TEST--
+Execution order of variables
+--FILE--
+<?php
+
+/* strings and concat */
+
+class strclass {
+   var $str = "bad";
+   static $statstr = "bad";
+}
+
+$a = "bad";
+$b = "good";
+echo "1)";
+$c = $a.($a=$b);
+echo $c;
+echo "\r\n";
+
+$a = "bad";
+$b = "good";
+$c = ($a=$b).$a;
+echo "2)";
+echo $c;
+echo "\r\n";
+
+
+$str = new strclass();
+$c = $str->str.($str->str="good");
+echo "3)";
+echo $c;
+echo "\r\n";
+
+$str->str = "bad";
+
+$c = ($str->str="good").$str->str;
+echo "4)";
+echo $c;
+echo "\r\n";
+
+$c = strclass::$statstr.(strclass::$statstr="good");
+echo "5)";
+echo $c;
+echo "\r\n";
+
+strclass::$statstr = "bad";
+
+$c = (strclass::$statstr="good").strclass::$statstr;
+echo "6)";
+echo $c;
+echo "\r\n";
+
+
+function foo() {
+   global $a;
+   $a = "good";
+   return $a;
+}
+
+
+$a = "bad";
+echo "7)";
+echo foo() . $a;
+echo "\r\n";
+
+$a = "bad";
+echo "8)";
+echo $a . foo();
+echo "\r\n";
+
+/* other operators */
+
+$x = 1;
+$z = $x - ($x++);
+echo "9)";
+echo $z;
+echo "\r\n";
+
+$x = 1;
+$z = ($x++) - $x;
+echo "10)";
+echo $z;
+echo "\r\n";
+
+$x = 1;
+$z = $x - (++$x);
+echo "11)";
+echo $z;
+echo "\r\n";
+
+$x = 1;
+$z = (++$x) - $x;
+echo "12)";
+echo $z;
+echo "\r\n";
+
+
+$x = 1;
+$y = 3;
+$z = $x - ($x=$y);
+echo "13)";
+echo $z;
+echo "\r\n";
+
+$x = 1;
+$y = 3;
+$z = ($x=$y) - $x;
+echo "14)";
+echo $z;
+echo "\r\n";
+
+
+$a = 100;
+$b = 200;
+echo "15)";
+echo $a + ($a=$b);
+echo "\r\n";
+
+$a = 100;
+$b = 200;
+echo "16)";
+echo ($a=$b) + $a;
+echo "\r\n";
+
+
+$a = array(100,200);
+$i = 0;
+
+echo "17)";
+echo $a[$i++] + $a[$i++];
+echo "\r\n";
+
+$i = -1;
+echo "18)";
+echo $a[++$i] + $a[++$i];
+echo "\r\n";
+
+$i = 0;
+echo "19)";
+echo $a[$i] + ($a[$i]=400);
+echo "\r\n";
+
+
+$a[0] = 100;
+echo "20)";
+echo ($a[$i]=400) + $a[$i];
+echo "\r\n";
+
+
+class c {
+   var $val = 10;
+   static $stat = 20;
+}
+
+echo "21)";
+echo c::$stat + (c::$stat=200);
+echo "\r\n";
+
+echo "22)";
+echo (c::$stat=300) + c::$stat;
+echo "\r\n";
+
+$c = new c();
+
+echo "23)";
+echo $c->val + ($c->val=200);
+echo "\r\n";
+
+echo "24)";
+echo ($c->val=300) + $c->val;
+echo "\r\n";
+ 
+?>
+--EXPECT--
+1)goodgood
+2)goodgood
+3)badgood
+4)goodgood
+5)badgood
+6)goodgood
+7)goodgood
+8)goodgood
+9)1
+10)-1
+11)0
+12)0
+13)0
+14)0
+15)400
+16)400
+17)300
+18)300
+19)500
+20)800
+21)220
+22)600
+23)210
+24)600