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<?php $x = []; $x[1.2] = 1; var_dump(gettype(key($x))); var_dump($x[1]);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Implicit conversion from float 1.2 to int loses precision in /in/Xc9e3 on line 4 string(7) "integer" int(1)

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