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PHP abs () function

PHP Math Reference PHP Math Reference

Examples

Returns the absolute value of different numbers:

<?php
echo(abs(6.7) . "<br>");
echo(abs(-6.7) . "<br>");
echo(abs(-3) . "<br>");
echo(abs(3));
?>

Running instance »

Definition and Usage

abs () function returns the absolute value of a number.


grammar

abs( number );

参数 描述
number 必需。规定一个数。如果数字的类型是浮点型,则返回的类型也是浮点型,否则将以整数形式返回。

technical details

return value: number of absolute value.
Return type: Float / Integer
PHP version: 4+


PHP Math Reference PHP Math Reference