How to convert string to int type in php

How to convert a string to int type in php: You can use the built-in function intval() to achieve this. The intval() function is used to obtain the integer value of a variable. If the execution is successful, it returns an integer value. If the execution fails, it returns 0, for example: [intval("1")].

Function introduction:

intval() function is used to obtain the integer value of a variable.

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intval() function returns the integer value of the 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 ] )

Parameters:

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

• #$base: The base used for conversion.

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Return value:

Returns the integer value of var when successful, and when failed Return 0. An empty array returns 0, a non-empty array returns 1.

Code example:

<?php 
$foo = "1"; // $foo 是字符串类型 
$bar = intval($foo); // $bar 是整型 
?>

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