php怎么向上取整以5为界
public function test(){ $number = 52093; var_dump( $this->roundNumberVariant( ( int ) $number ) ); } private function roundNumberVariant( $number ){ //注意:因涉及乘除运算,为了避免知普通计算导致的不精确问题,直接使用BC库函数 return ( int ) bcmul( ceil( bcdiv( $number , 5000 , 4 ) ) , 5000 ); }
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