rfc:hashkey
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| Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
| rfc:hashkey [2014/10/22 17:48] – krakjoe | rfc:hashkey [2014/10/22 17:57] – krakjoe | ||
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| Line 7: | Line 7: | ||
| ===== Proposal ===== | ===== Proposal ===== | ||
| - | A new magic toKey method, to resolve the problem of not being able to use Objects as array keys. The VM will invoke the method on ADD_ARRAY_ELEMENT for keys that have the magic method set. | + | A new magic toKey method, to resolve the problem of not being able to use Objects as array keys. |
| <code php> | <code php> | ||
| Line 42: | Line 42: | ||
| ]; | ]; | ||
| </ | </ | ||
| + | |||
| + | Returning a non-scalar shall fail as it did before: | ||
| + | |||
| + | <code php> | ||
| + | <?php | ||
| + | class Foo { | ||
| + | public function __toKey() { | ||
| + | return []; | ||
| + | } | ||
| + | } | ||
| + | |||
| + | $foo = new Foo(); | ||
| + | $test = [ | ||
| + | $foo => true | ||
| + | ]; | ||
| + | </ | ||
| + | |||
| + | Shall yield: | ||
| + | |||
| + | <code php> | ||
| + | Warning: Illegal offset type in %s on line %d | ||
| + | </ | ||
| + | |||
| + | The current behaviour of __toString is unchanged. | ||
| ===== Proposed PHP Version(s) ===== | ===== Proposed PHP Version(s) ===== | ||
rfc/hashkey.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1