How to convert value to integer in php

Method: 1. Add "(int)" or "(integer)" before the value, for example "3.14(int)"; 2. Use the intval() function, the syntax is "intval(value)" ;3. Use the ceil() function, the syntax is "ceil(value)"; 4. Use the floor function, the syntax is "floor(value)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php transfers the value For an integer

1, add "(int)" or "(integer)" before the value

<?php
$str = &#39;123.456abc&#39;;
$int = (int)$str;
echo $int."<br>";

$float = 3.14;
$int = (integer)$float;
echo $int."<br>";
?>

2. Use the intval() function

<?php
$str = &#39;123.456abc&#39;;
$int = intval($str);
echo $int."<br>";

$float = 5.64;
$int = intval($float);
echo $int."<br>";

$bool = true;
$int = intval($bool);
echo $int."<br>";
?>

##3. Use the ceil() function

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = ceil($num);
echo &#39;变量 $int 的类型为：&#39;.gettype($int).&#39;<br>&#39;;
echo $int;
?>

4. Use the floor function

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = floor($num);
echo &#39;变量 $int 的类型为：&#39;.gettype($int).&#39;<br>&#39;;
echo $int;
?>

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