From: Robert Nicholson <nicholsr@php.net>
Date: Wed, 27 May 2009 22:36:04 +0000 (+0000)
Subject: Language Tests: returnByReference
X-Git-Tag: php-5.2.10RC2~73
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e29517872b6bea35791431baadfe643ae7a4428a;p=php

Language Tests: returnByReference
---

diff --git a/tests/lang/returnByReference.001.phpt b/tests/lang/returnByReference.001.phpt
new file mode 100644
index 0000000000..4abc3c7a2f
--- /dev/null
+++ b/tests/lang/returnByReference.001.phpt
@@ -0,0 +1,20 @@
+--TEST--
+Returning a reference from a function
+--FILE--
+<?php
+
+function &returnByRef(&$arg1)
+{
+	return $arg1;
+}
+
+$a = 7;
+$b =& returnByRef($a);
+var_dump($b);
+$a++;
+var_dump($b);
+
+?>
+--EXPECT--
+int(7)
+int(8)
\ No newline at end of file
diff --git a/tests/lang/returnByReference.002.phpt b/tests/lang/returnByReference.002.phpt
new file mode 100644
index 0000000000..3494eb588a
--- /dev/null
+++ b/tests/lang/returnByReference.002.phpt
@@ -0,0 +1,29 @@
+--TEST--
+Returning a reference from a function.
+--FILE--
+<?php
+function &returnRef() {
+		global $a;
+		return $a;
+}
+
+function returnVal() {
+		global $a;
+		return $a;
+}
+
+$a = "original";
+$b =& returnVal();
+$b = "changed";
+var_dump($a); //expecting warning + "original" 
+
+$a = "original";
+$b =& returnRef();
+$b = "changed";
+var_dump($a); //expecting "changed" 
+?>
+--EXPECTF--
+
+Strict Standards: Only variables should be assigned by reference in %s on line 13
+string(8) "original"
+string(7) "changed"
diff --git a/tests/lang/returnByReference.003.phpt b/tests/lang/returnByReference.003.phpt
new file mode 100644
index 0000000000..04a6338515
--- /dev/null
+++ b/tests/lang/returnByReference.003.phpt
@@ -0,0 +1,55 @@
+--TEST--
+Returning a reference from a function
+--FILE--
+<?php
+function returnConstantByValue() {
+	return 100;
+}
+
+function &returnConstantByRef() {
+	return 100;
+}
+
+function &returnVariableByRef() {
+	return $GLOBALS['a'];
+}
+
+echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnConstantByValue();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnConstantByRef();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnVariableByRef();
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+
+---> 1. Trying to assign by reference the return value of a function that returns by value:
+
+Strict Standards: Only variables should be assigned by reference in %s on line 17
+int(5)
+int(100)
+
+---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 7
+int(5)
+int(100)
+
+---> 3. Trying to assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
diff --git a/tests/lang/returnByReference.004.phpt b/tests/lang/returnByReference.004.phpt
new file mode 100644
index 0000000000..f185c1275b
--- /dev/null
+++ b/tests/lang/returnByReference.004.phpt
@@ -0,0 +1,57 @@
+--TEST--
+Returning a reference from a static method
+--FILE--
+<?php
+Class C {
+	static function returnConstantByValue() {
+		return 100;
+	}
+
+	static function &returnConstantByRef() {
+		return 100;
+	}
+	
+	static function &returnVariableByRef() {
+		return $GLOBALS['a'];
+	}
+}
+
+echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnConstantByValue();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnConstantByRef();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnVariableByRef();
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+
+---> 1. Trying to assign by reference the return value of a function that returns by value:
+
+Strict Standards: Only variables should be assigned by reference in %s on line 19
+int(5)
+int(100)
+
+---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 8
+int(5)
+int(100)
+
+---> 3. Trying to assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
diff --git a/tests/lang/returnByReference.005.phpt b/tests/lang/returnByReference.005.phpt
new file mode 100644
index 0000000000..a7b6da2f16
--- /dev/null
+++ b/tests/lang/returnByReference.005.phpt
@@ -0,0 +1,58 @@
+--TEST--
+Returning a reference from a method
+--FILE--
+<?php
+Class C {
+	function returnConstantByValue() {
+		return 100;
+	}
+	
+	function &returnConstantByRef() {
+		return 100;
+	}
+	
+	static function &returnVariableByRef() {
+		return $GLOBALS['a'];
+	}
+}
+$c = new C;
+
+echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnConstantByValue();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnConstantByRef();
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnVariableByRef();
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+
+---> 1. Trying to assign by reference the return value of a function that returns by value:
+
+Strict Standards: Only variables should be assigned by reference in %s on line 20
+int(5)
+int(100)
+
+---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 8
+int(5)
+int(100)
+
+---> 3. Trying to assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
diff --git a/tests/lang/returnByReference.006.phpt b/tests/lang/returnByReference.006.phpt
new file mode 100644
index 0000000000..4019f3ab45
--- /dev/null
+++ b/tests/lang/returnByReference.006.phpt
@@ -0,0 +1,60 @@
+--TEST--
+Returning a reference from a function via another function
+--INI--
+error_reporting = E_ALL & ~E_STRICT
+--FILE--
+<?php
+function returnConstantByValue() {
+	return 100;
+}
+
+function &returnConstantByRef() {
+	return 100;
+}
+
+function &returnVariableByRef() {
+	return $GLOBALS['a'];
+}
+
+function &returnFunctionCallByRef($functionToCall) {
+	return $functionToCall();
+}
+
+echo "\n---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnFunctionCallByRef('returnConstantByValue');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnFunctionCallByRef('returnConstantByRef');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &returnFunctionCallByRef('returnVariableByRef');
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:
+
+Notice: Only variable references should be returned by reference in %s on line 15
+int(5)
+int(100)
+
+---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 7
+int(5)
+int(100)
+
+---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
diff --git a/tests/lang/returnByReference.007.phpt b/tests/lang/returnByReference.007.phpt
new file mode 100644
index 0000000000..1247e5596c
--- /dev/null
+++ b/tests/lang/returnByReference.007.phpt
@@ -0,0 +1,63 @@
+--TEST--
+Returning a reference from a static method via another static method
+--INI--
+error_reporting = E_ALL & ~E_STRICT
+--FILE--
+<?php
+class C {
+	static function returnConstantByValue() {
+		return 100;
+	}
+	
+	static function &returnConstantByRef() {
+		return 100;
+	}
+	
+	static function &returnVariableByRef() {
+		return $GLOBALS['a'];
+	}
+	
+	static function &returnFunctionCallByRef($functionToCall) {
+		return C::$functionToCall();
+	}
+}
+
+echo "\n---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnFunctionCallByRef('returnConstantByValue');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnFunctionCallByRef('returnConstantByRef');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &C::returnFunctionCallByRef('returnVariableByRef');
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+
+---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:
+
+Notice: Only variable references should be returned by reference in %s on line 16
+int(5)
+int(100)
+
+---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 8
+int(5)
+int(100)
+
+---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
\ No newline at end of file
diff --git a/tests/lang/returnByReference.008.phpt b/tests/lang/returnByReference.008.phpt
new file mode 100644
index 0000000000..d595de22d5
--- /dev/null
+++ b/tests/lang/returnByReference.008.phpt
@@ -0,0 +1,64 @@
+--TEST--
+Returning a reference from a non-static method via another non-static method
+--INI--
+error_reporting = E_ALL & ~E_STRICT
+--FILE--
+<?php
+class C {
+	function returnConstantByValue() {
+		return 100;
+	}
+	
+	function &returnConstantByRef() {
+		return 100;
+	}
+	
+	function &returnVariableByRef() {
+		return $GLOBALS['a'];
+	}
+	
+	function &returnFunctionCallByRef($functionToCall) {
+		return $this->$functionToCall();
+	}
+}
+$c = new C;
+
+echo "\n---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnFunctionCallByRef('returnConstantByValue');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnFunctionCallByRef('returnConstantByRef');
+$a++;
+var_dump($a, $b);
+
+echo "\n---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:\n";
+unset($a, $b);
+$a = 4;
+$b = &$c->returnFunctionCallByRef('returnVariableByRef');
+$a++;
+var_dump($a, $b);
+
+?>
+--EXPECTF--
+
+---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:
+
+Notice: Only variable references should be returned by reference in %s on line 16
+int(5)
+int(100)
+
+---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:
+
+Notice: Only variable references should be returned by reference in %s on line 8
+int(5)
+int(100)
+
+---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:
+int(5)
+int(5)
\ No newline at end of file
diff --git a/tests/lang/returnByReference.009.phpt b/tests/lang/returnByReference.009.phpt
new file mode 100644
index 0000000000..63203757de
--- /dev/null
+++ b/tests/lang/returnByReference.009.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Returning a references returned by another function
+--FILE--
+<?php
+
+
+function &returnVarByRef () {
+    $b=1;
+	return $b; 
+}
+
+function &testReturnVarByRef() {
+	return returnVarByRef();
+}
+
+function returnVal () {
+return 1; 
+}
+
+function &testReturnValByRef() {
+	return returnVal();
+}
+
+echo "\n---> 1. Return a variable by reference -> No warning:\n";
+
+var_dump (testReturnVarByRef());
+
+echo "\n---> 2. Return a value by reference -> Warning:\n";
+
+var_dump (testReturnValByRef());
+
+--EXPECTF--
+---> 1. Return a variable by reference -> No warning:
+int(1)
+
+---> 2. Return a value by reference -> Warning:
+
+Notice: Only variable references should be returned by reference in %s on line %d
+int(1)