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returnByReference.007.phpt
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Tue Feb 21 23:48:06 2012 UTC (12 years, 5 months ago) by
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CVS tags:
v5_4_3elwix,
v5_4_29p0,
v5_4_29,
v5_4_20p0,
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v5_4_17p0,
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php
--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)
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