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run code in 150+ php & hhvm versions
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<?php var_dump((int) "9999999999999999999999999999"); var_dump(9999999999999999999999999999 > pow(10, 27)); var_dump(9999999999999999999999999999 === pow(10, 27)); var_dump("9999999999999999999999999999" < pow(10, 27)); var_dump("9999999999999999999999999999" > pow(10, 27)); var_dump("9999999999999999999999999999" === pow(10, 27));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(9223372036854775807) bool(true) bool(false) bool(false) bool(true) bool(false)