[PHP] Add support for PHP7.

PHP5's C extension API has changed substantially so you need to use
-php7 to specify you want PHP7 compatible wrappers.
Fixes https://github.com/swig/swig/issues/571

Examples/test-suite/php5/director_exception_runme.php

@@ -0,0 +1,127 @@
+<?php
+
+require "tests.php";
+require "director_exception.php";
+
+// No new functions
+check::functions(array(foo_ping,foo_pong,launder,bar_ping,bar_pong,bar_pang,returnalltypes_return_int,returnalltypes_return_double,returnalltypes_return_const_char_star,returnalltypes_return_std_string,returnalltypes_return_bar,returnalltypes_call_int,returnalltypes_call_double,returnalltypes_call_const_char_star,returnalltypes_call_std_string,returnalltypes_call_bar,is_python_builtin));
+// No new classes
+check::classes(array(director_exception,Foo,Exception1,Exception2,Base,Bar,ReturnAllTypes));
+// now new vars
+check::globals(array());
+
+class MyException extends Exception {
+  function __construct($a, $b) {
+    $this->msg = $a . $b;
+  }
+}
+
+class MyFoo extends Foo {
+  function ping() {
+    throw new Exception("MyFoo::ping() EXCEPTION");
+  }
+}
+
+class MyFoo2 extends Foo {
+  function ping() {
+    return true;
+  }
+}
+
+class MyFoo3 extends Foo {
+  function ping() {
+    throw new MyException("foo", "bar");
+  }
+}
+
+# Check that the Exception raised by MyFoo.ping() is returned by 
+# MyFoo.pong().
+$ok = 0;
+$a = new MyFoo();
+# TODO: Currently we do not track the dynamic type of returned 
+# objects, so we skip the launder() call.
+#$b = director_exception::launder($a);
+$b = $a;
+try {
+  $b->pong();
+} catch (Exception $e) {
+  $ok = 1;
+  check::equal($e->getMessage(), "MyFoo::ping() EXCEPTION", "Unexpected error message #1");
+}
+check::equal($ok, 1, "Got no exception while expected one #1");
+
+# Check that the director can return an exception which requires two 
+# arguments to the constructor, without mangling it.
+$ok = 0;
+$a = new MyFoo3();
+#$b = director_exception::launder($a);
+$b = $a;
+try {
+  $b->pong();
+} catch (Exception $e) {
+  $ok = 1;
+  check::equal($e->msg, "foobar", "Unexpected error message #2");
+}
+check::equal($ok, 1, "Got no exception while expected one #2");
+
+try {
+  throw new Exception2();
+} catch (Exception2 $e2) {
+}
+
+try {
+  throw new Exception1();
+} catch (Exception1 $e1) {
+}
+
+// Check that we can throw exceptions from director methods (this didn't used
+// to work in all cases, as the exception gets "set" in PHP and the method
+// then returns PHP NULL, which the directorout template may fail to convert.
+
+class Bad extends ReturnAllTypes {
+  function return_int() { throw new Exception("bad int"); }
+  function return_double() { throw new Exception("bad double"); }
+  function return_const_char_star() { throw new Exception("bad const_char_star"); }
+  function return_std_string() { throw new Exception("bad std_string"); }
+  function return_Bar() { throw new Exception("bad Bar"); }
+}
+
+$bad = new Bad();
+
+try {
+    $bad->call_int();
+    check::fail("Exception wasn't propagated from Bad::return_int()");
+} catch (Exception $e) {
+    check::equal($e->getMessage(), "bad int", "propagated exception incorrect");
+}
+
+try {
+    $bad->call_double();
+    check::fail("Exception wasn't propagated from Bad::return_double()");
+} catch (Exception $e) {
+    check::equal($e->getMessage(), "bad double", "propagated exception incorrect");
+}
+
+try {
+    $bad->call_const_char_star();
+    check::fail("Exception wasn't propagated from Bad::return_const_char_star()");
+} catch (Exception $e) {
+    check::equal($e->getMessage(), "bad const_char_star", "propagated exception incorrect");
+}
+
+try {
+    $bad->call_std_string();
+    check::fail("Exception wasn't propagated from Bad::return_std_string()");
+} catch (Exception $e) {
+    check::equal($e->getMessage(), "bad std_string", "propagated exception incorrect");
+}
+
+try {
+    $bad->call_Bar();
+    check::fail("Exception wasn't propagated from Bad::return_Bar()");
+} catch (Exception $e) {
+    check::equal($e->getMessage(), "bad Bar", "propagated exception incorrect");
+}
+
+check::done();
+?>