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<?php function castNumber($n) { if(!is_numeric($n)) return 0; return (is_float($n)) ? (float) $n : (int) $n; } var_dump($casted = castNumber('8'));
Output for git.master, git.master_jit, rfc.property-hooks
int(8)

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53.34 ms | 401 KiB | 8 Q