How does PHP calculate integer division?

1. Grammar

    intdiv(divident, divisor);

2. Example

<?php   
     $a = 10;
     $b = 3;
    
    
    $c = $a/$b;//正常除法   
    print("$a/$b="."$c \n");//10/3=3.3333333333333
    echo "<br>";
    var_dump($c);           //float(3.3333333333333) 

?>

<?php   
     $a = 10;
     $b = 3;
    
  
    $c = intdiv($a, $b);  //使用intdiv()函数
    print("$a/$b="."$c \n");//10/3=3
    echo "<br>";
    var_dump($c);           //   int(3) 
?>

In fact, the function of this function is to round down, without rounding of.

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