How to change a negative number of php into a positive number

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Php negative numbers into positive methods: 1, create a PHP example file; 2, enter "$a =-1;"; 3, through "abs ($a);" negative numbers can be turned into positive numbers.

This article operating environment: Windows7 system, PHP7.1 version, Dell G3 computer.

How do php negative numbers become positive?

PHP negative to positive

Function: abs ()

Echo $b; / / output 1

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

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