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Conversion method: 1. Use the intval() function, syntax "intval($str)"; 2. Force the variable type to be converted by adding the target type enclosed in parentheses before the string variable "( integer)", syntax "(integer)$str".
The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
php will string Convert to integer type
Method 1: Use the intval() function
intval(): used to obtain the integer value of the variable;
Example:
<?php
header("Content-type:text/html;charset=utf-8");
$str = '125.456abc';
$int = intval($str);
var_dump($int);
?>Output result:
Method 2: Add parentheses before the string variable The target type is forced to convert the variable type "(integer)"
(integer): String variables can be converted into integer types
Example:
<?php
header("Content-type:text/html;charset=utf-8");
$str = '1253.456abc';
$int = (integer)$str;
var_dump($int);
?>Output results:
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