How to convert numbers to string type in php

php method to convert numbers to strings: 1. Add the target type "(string)" enclosed in parentheses before the numeric variable to be converted, the syntax is "(string)$num"; 2 , use strval() function, syntax "strval($num)".

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

php converts numbers For string type

#Method 1: Add the target type enclosed in parentheses "(string)"# before the numeric variable to be converted.

## You can coerce a specified variable to a specified type by preceding the variable with the target type enclosed in parentheses, whereas:

• ( string): It is forced to convert to string type;

<?php
header("Content-type:text/html;charset=utf-8");
$num = 12354;
echo &#39;原变量类型为：&#39; . gettype($num) . &#39;<br>&#39;;

$str = (string)$num;
echo &#39;转换后的变量类型为：&#39; . gettype($str) . &#39;<br><br>&#39;;

$num = 123.54;
echo &#39;原变量类型为：&#39; . gettype($num) . &#39;<br>&#39;;

$str = (string)$num;
echo &#39;转换后的变量类型为：&#39; . gettype($str) . &#39;<br><br>&#39;;
?>

##Method 2: Use strval() function

strval() function is used to get the string value of a variable.

<?php
header("Content-type:text/html;charset=utf-8");
$num = 3.1415;
echo &#39;原变量类型为：&#39; . gettype($num) . &#39;<br>&#39;;

$str = strval($num);
echo &#39;转换后的变量类型为：&#39; . gettype($str) . &#39;<br><br>&#39;;

$num = 31415;
echo &#39;原变量类型为：&#39; . gettype($num) . &#39;<br>&#39;;

$str = strval($num);
echo &#39;转换后的变量类型为：&#39; . gettype($str) . &#39;<br><br>&#39;;
?>

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