How to force transcoding in php

php forced transcoding method: 1. Transcoding through "(int)$num1;" method; 2. Transcoding through "intval($str);" method; 3. Transcoding through "settype($ num4,"int");" transcoding method.

#The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

How to force transcoding in php?

#php Three methods of data type conversion and forced conversion:

(int), (integer): Convert to integer

( float), (double), (real): Convert to floating point type

(string): Convert to string

(bool), (boolean): Convert to Boolean type

(array): Convert to array

(object): Convert to object

The first conversion method: (int) (bool) (float) (string) (array ) (object)

<?php   
$num1=3.14;   
$num2=(int)$num1;   
var_dump($num1); //输出float(3.14)   
var_dump($num2); //输出int(3)   
?>

The second conversion method: intval() floatval() strval()

<?php   
$str="123.9abc";   
$int=intval($str);     //转换后数值：123   
$float=floatval($str); //转换后数值：123.9   
$str=strval($float);   //转换后字符串："123.9"    
?>

The third conversion method ： settype();

<?php   
$num4=12.8;   
$flg=settype($num4,"int");   
var_dump($flg);  //输出bool(true)   
var_dump($num4); //输出int(12)   
?>

Recommended learning: "PHP Video Tutorial"

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