note 129532 added to function.str-starts-with

For those who seek implementation of these for PHP version below 8.0, you can use, the following code snippet For PHP7 <?php if (!function_exists('str_starts_with')) { function str_starts_with(string $haystack, string $needle): bool { return substr($haystack, 0, strlen($needle)) === $needle; } } ?> ...and for PHP5.6 and below <?php if (!function_exists('str_starts_with')) { function str_starts_with($haystack, $needle) { return substr($haystack, 0, strlen($needle)) === $needle; } } $testStr = "beginningMiddleEnd"; var_dump(str_starts_with($testStr, "beginning")); // true var_dump(str_starts_with($testStr, "Beginning")); // false var_dump(str_starts_with($testStr, "eginning")); // false var_dump(str_starts_with($testStr, $testStr)); // true var_dump(str_starts_with($testStr, $testStr.$testStr)); // false var_dump(str_starts_with($testStr, "")); // true var_dump(str_starts_with("", "")); // true var_dump(str_starts_with("", " ")); // false var_dump(str_starts_with($testStr, "\x00")); // false var_dump(str_starts_with("\x00", "")); // true var_dump(str_starts_with("\x00", "\x00")); // true var_dump(str_starts_with("\x00a", "\x00")); // true var_dump(str_starts_with("a\x00bc", "a\x00b")); // true var_dump(str_starts_with("a\x00b", "a\x00d")); // false var_dump(str_starts_with("a\x00b", "z\x00b")); // false var_dump(str_starts_with("a", "a\x00")); // false var_dump(str_starts_with("a", "\x00a")); // false ?> ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.137 (proxied: 95.99.122.236) ---- Manual Page -- https://php.net/manual/en/function.str-starts-with.php Edit -- https://main.php.net/note/edit/129532 Del: integrated -- https://main.php.net/note/delete/129532/integrated Del: useless -- https://main.php.net/note/delete/129532/useless Del: bad code -- https://main.php.net/note/delete/129532/bad+code Del: spam -- https://main.php.net/note/delete/129532/spam Del: non-english -- https://main.php.net/note/delete/129532/non-english Del: in docs -- https://main.php.net/note/delete/129532/in+docs Del: other reasons-- https://main.php.net/note/delete/129532 Reject -- https://main.php.net/note/reject/129532 Search -- https://main.php.net/manage/user-notes.php