3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("%ld\n", 0x7fffffffffffffff); // PHP max int on 64 bit printf("%ld\n", 0x7fffffffffffffff+1); // float cast to int == -9 quintillion and 8 number b/c of 2C
Output for git.master, git.master_jit, rfc.property-hooks
9223372036854775807 -9223372036854775808

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50.14 ms | 401 KiB | 8 Q