Implementation method of converting php to positive number

The implementation method of converting php to positive number: first create a PHP sample file; then define a negative number; then use the "abs($a);" method to convert the specified negative number into a positive number; finally use echo output conversion The result is enough.

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PHP negative number to positive number

Function: abs ()

$a = -1;
$b = abs($a);

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

Syntax

abs(x)

Parameters

x Required. A number.

Description

Returns the absolute value of parameter x. If the parameter x is a float, the return type is also a float, otherwise an integer is returned (because float usually has a larger value range than an integer).

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