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<?php function stringCheck_TypeSafe(string $string) { $pos = strpos($string, 'cat'); if ($pos === 0) { return true; } return false; } function stringCheck_NotTypeSafe($string) { $pos = strpos($string, 'cat'); if ($pos != 'true') { return true; } return false; } echo "type safe string check, return should be true:\n"; var_dump(stringCheck_TypeSafe('cat')); echo "not type safe string check, return should be true:\n"; var_dump(stringCheck_NotTypeSafe('cat')); echo "not type safe string check, return should be false:\n"; var_dump(stringCheck_NotTypeSafe('a'));
Output for git.master, git.master_jit, rfc.property-hooks
type safe string check, return should be true: bool(true) not type safe string check, return should be true: bool(true) not type safe string check, return should be false: bool(true)

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