How to convert floating point type to int type in php

How to convert floating point type to int type in php: 1. Use intval() function, syntax "intval (floating point data)"; 2. Use settype() function, syntax "settype( Floating point data, 'integer')".

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

php will float Method to convert point type to int type:

Method 1: Use intval() function

intval() function is used to obtain the variable Integer value.

intval() function returns the integer value of variable var by using the specified base conversion (default is decimal). intval() cannot be used with object, otherwise an E_NOTICE error will be generated and 1 will be returned.

Syntax:

int intval ( mixed $var [, int $base = 10 ] )

Parameter description:

• $var: The quantity value to be converted to integer.

• #$base: The base used for conversion.

If base is 0, the base used is determined by detecting the format of var:

• If the string includes "0x" ( or "0X"), use hexadecimal (hex); otherwise,

• If the string starts with "0", use octal (octal); otherwise,

• Decimal will be used.

Return value: The integer value of var is returned on success, and 0 is returned on failure. An empty array returns 0, a non-empty array returns 1.

Example: Convert floating point type to int type

<?php   
$num1=3.1415926;   
$num2=intval($num1); 
var_dump($num1); 
var_dump($num2); 
?>

##Method 2: Use settype() function

settype() function: used to set the type of variables.

The type that can be set is:

• "boolean" (or "bool", starting from PHP 4.2.0)

• "integer" (or "int" since PHP 4.2.0)

• "float" (only available since PHP 4.2.0, for older versions "double" used in is now deprecated)

• "string"

• "array"

• "object"

• "null" (from PHP 4.2.0)

Note: The settype() function will change the variable type itself.

Example: Convert floating point type to int type

<?php
header("Content-type:text/html;charset=utf-8");
$num1=2.24;
$num2=52.36;
echo &#39;原 $num1 和 $num1：<br>&#39;;
var_dump($num1); 
var_dump($num2); 

settype($num1, &#39;integer&#39;);
settype($num2, &#39;integer&#39;);
echo &#39;<br>现 $num1 和 $num1：<br>&#39;;
var_dump($num1); 
var_dump($num2); 
?>

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