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How to convert numbers to strings in php

王林
王林Original
2020-11-09 09:37:102512browse

The way PHP converts numbers to strings is to use the conversion function strval, such as [$str=strval($float);]. You can also use forced type conversion to achieve this, that is, add the target type enclosed in parentheses before the variable to be converted.

How to convert numbers to strings in php

Conversion method:

1. Add the target type enclosed in parentheses before the variable to be converted

2. Use three specific types of conversion functions, intval(), floatval(), strval() [Memory: the destination type val() you want to convert]

3. Use the general type conversion function settype(mixed var, string type)

(Learning video recommendation: java video tutorial

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)   
?>

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