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57 lines
1.3 KiB
PHP
57 lines
1.3 KiB
PHP
--TEST--
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Returning a reference from a static method
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--FILE--
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<?php
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Class C {
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static function returnConstantByValue() {
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return 100;
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}
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static function &returnConstantByRef() {
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return 100;
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}
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static function &returnVariableByRef() {
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return $GLOBALS['a'];
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}
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}
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echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
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unset($a, $b);
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$a = 4;
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$b = &C::returnConstantByValue();
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$a++;
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var_dump($a, $b);
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echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
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unset($a, $b);
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$a = 4;
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$b = &C::returnConstantByRef();
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$a++;
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var_dump($a, $b);
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echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
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unset($a, $b);
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$a = 4;
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$b = &C::returnVariableByRef();
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$a++;
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var_dump($a, $b);
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?>
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--EXPECTF--
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---> 1. Trying to assign by reference the return value of a function that returns by value:
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Notice: Only variables should be assigned by reference in %s on line 19
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int(5)
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int(100)
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---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:
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Notice: Only variable references should be returned by reference in %s on line 8
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int(5)
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int(100)
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---> 3. Trying to assign by reference the return value of a function that returns by ref:
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int(5)
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int(5)
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