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<?php function Kmod($bn, $sn) { return intval(fmod(floatval($bn), $sn)); } //整数取余方法 function mod($bn, $sn) { return $bn%$sn; } //最大的int整数 $bn = PHP_INT_MAX; $sn = 11; var_dump($bn); var_dump(Kmod($bn, $sn)); var_dump(mod($bn, $sn)); //给最大的int整数加1 当给最大的整型数加1之后，得到的$bn已经变为了浮点型。 $bn = PHP_INT_MAX + 1; var_dump($bn); var_dump(Kmod($bn, $sn)); var_dump(mod($bn, $sn));
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(9223372036854775807) int(8) int(7) float(9.223372036854776E+18) int(8) Deprecated: Implicit conversion from float 9.223372036854776E+18 to int loses precision in /in/Q8vEm on line 9 int(-8)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(9223372036854775807) int(8) int(7) float(9.223372036854776E+18) int(8) Deprecated: Implicit conversion from float 9.223372036854776E+18 to int loses precision in /in/Q8vEm on line 9 int(-8)
Output for 8.0.0 - 8.0.30
int(9223372036854775807) int(8) int(7) float(9.223372036854776E+18) int(8) int(-8)
Output for 4.4.0 - 4.4.9, 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 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
int(9223372036854775807) int(8) int(7) float(9.2233720368548E+18) int(8) int(-8)
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/Q8vEm on line 13 string(11) "PHP_INT_MAX" int(0) int(0) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/Q8vEm on line 21 int(1) int(1) int(1)
preferences:
281.59 ms | 402 KiB | 459 Q