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d0a56f707f
Make sure to always fetch the RHS of a list assignment first, instead of special casing known self-assignments, which will not detect cases using references correctly. As a side-effect, it is no longer possible to do something like byRef(list($x) = $y). This worked by accident previously, but only if $y was a CV and the self-assignment case did not trigger. However it shouldn't work for the same reason that byRef($x = $y) doesn't. Conversely byRef(list(&$x) = $y) and byRef($x =& $y) continue to be legal.
29 lines
354 B
PHP
29 lines
354 B
PHP
--TEST--
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Bug #71030: Self-assignment in list() may have inconsistent behavior
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--FILE--
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<?php
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function test1() {
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$a = [1, 2];
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$c =& $a;
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list($c, $b) = $a;
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var_dump($a, $b);
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}
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function test2() {
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$a = [1, 2];
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$_a = "a";
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list($$_a, $b) = $a;
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var_dump($a, $b);
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}
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test1();
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test2();
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?>
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--EXPECT--
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int(1)
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int(2)
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int(1)
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int(2)
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