PHP Introductory Tutorial Math skills Summary _php Skills

This example describes the math skills of the introductory PHP tutorial. Share to everyone for your reference, specific as follows:

demo1.php

<?php
//$a = ' 5 ';
$b = 7+ $a;
echo $b;
  $a = ' a ';
  $b = 7+ $a;
  echo $b;
? >

demo2.php

<?php
  $a = 10.0;
  Is_int--Detects whether the variable is an integer
  if (is_int ($a)) {
    echo ' passes ';
  } else{
    Echo ' do not pass ';
  }
? >

demo3.php

<?php
  $a = 10.0;
  Is_int--Detects whether the variable is an integer
  if (is_int ($a)) {
    echo ' passes ';
  } else{
    Echo ' do not pass ';
  }
? >

demo4.php

<?php
  //rand-produces a random integer
  //echo rand (0,10);
  echo Mt_rand (0,100);
  echo Getrandmax ()//MAX number 32767
  //echo mt_getrandmax ()//MAX 2147483647?>

demo5.php

<?php
//$i = 123456789.4454;
$b = Number_format ($i, 2);
echo $b;  123,456,789.45
  $i = 12378456.456789;
  $b = Number_format ($i, 2, ' # ', ' @ ');
  echo $b;//12@378@456#46
?>

demo6.php

<?php
//$a =-6;
Echo ABS ($a);//Absolute value
//$b = 5.66;
echo Floor ($b),//round to take the whole
//Echo ($b);/Rounded
  Echo min (1,23,456,87,45,7,54)//1 Find minimum value or minimum value in array
  echo Max (1,23,456,87,45,7,54);//456 the maximum or maximum value of
  echo Pi () in the array,//3.14159265359
  echo pow (2,6);//64
?>

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I hope this article will help you with the PHP program design.