Add support for __exists(), a magic method for distinguishing "missing" from "set to null"#22240
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nicolas-grekas wants to merge 2 commits into
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Add support for __exists(), a magic method for distinguishing "missing" from "set to null"#22240nicolas-grekas wants to merge 2 commits into
__exists(), a magic method for distinguishing "missing" from "set to null"#22240nicolas-grekas wants to merge 2 commits into
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After __isset() returns true under ?? or empty(), re-check the property table before calling __get(). When __isset() materialised the property (a pattern used by lazy proxies), its value is returned directly. isset() itself is unchanged. Closes phpGH-12695.
…ing" from "set to null"
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See draft RFC at https://wiki.php.net/rfc/exists-magic-method
This PR is based on top of #22181 (a small engine fix for GH-12695, decoupled from this RFC and proposed for merge separately). The first commit in this PR is that fix.