Home > Article > Backend Development > The data types that can be output in php are
There are three ways to output data types in PHP: use the gettype() function to return the data type of the variable. Use the var_dump() function to provide more detailed information, including data types. Use the print_r() function to print the data value and include the data type.
How to output data types in PHP
PHP provides a variety of methods to output data types. The following are the most common methods:
1. Use the gettype()
function
gettype()
function to return a variable The data type, the result is a string.
<code class="php">$x = 5; echo gettype($x); // 输出:integer $y = "Hello"; echo gettype($y); // 输出:string</code>
2. Use the var_dump()
function
var_dump()
function provides more detailed information about variables , including its data type.
<code class="php">$x = 5; var_dump($x); // 输出: // int(5)</code>
3. Use the print_r()
function
print_r()
function to convert the value of the variable to an easy-to-read format. The format is printed to the output, including its data type.
<code class="php">$x = 5; print_r($x); // 输出: // 5</code>
The above is the detailed content of The data types that can be output in php are. For more information, please follow other related articles on the PHP Chinese website!