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<?php $original = "9223372036854775807"; $packed = pack("P", $original); assert(strlen($packed) === 8); $unpacked = unpack("P", $packed); echo $original . "\n"; var_dump($unpacked);
Output for 5.6.3 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
9223372036854775807 array(1) { [1]=> int(9223372036854775807) }
Output for 5.6.0 - 5.6.2
Warning: pack(): Type P: unknown format code in /in/Mnc6E on line 5 Warning: assert(): Assertion failed in /in/Mnc6E on line 7 Warning: unpack(): Invalid format type P in /in/Mnc6E on line 9 9223372036854775807 bool(false)
preferences:
135.6 ms | 407 KiB | 5 Q