3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mypi = 3.1415926535897932384626433832795028841971; $mypi = 3.141592653589793; $pi = pi(); printf("pi: %.24f, %.24f, %.24f\n", $pi, $mypi, M_PI); $l = strlen($mypi); echo "l: $l\n"; $d = pack("d", $mypi); $l = strlen($d); echo "l: $l\n"; $un = unpack("d", $d); $d = end($un); printf("%.24g\n", $d); $pi = 3.1415926535897932384626433832795028841971; $s = preg_split("//", $pi); $c = count($s); print_r($s); echo "c: $c\n"; echo gmp_strval($pi) . "\n";

preferences:
29.29 ms | 402 KiB | 5 Q