How to represent integers in php

PHP Integers

Integers are numbers without decimals.

Integer rules:

The integer must have at least one digit (0-9)

The integer cannot contain commas or spaces

Integers cannot have decimal points

Integers can be positive or negative (recommended learning:PHP programming from entry to proficiency)

Integers can be specified in three formats: decimal , hexadecimal (prefix is ​​0x) or octal (prefix is ​​0)

In the following example, we will test different numbers. PHP var_dump() will return the data type and value of the variable:

Example

"; 
$x = -345; // 负数 
var_dump($x);
echo "
"; 
$x = 0x8C; // 十六进制数
var_dump($x);
echo "
";
$x = 047; // 八进制数
var_dump($x);
?>

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