PHP

php number positive

<?php
echo abs(-4.2); // 4.2 (double/nombre à virgule flottante)
echo abs(5);    // 5 (entier)
echo abs(-5);   // 5 (entier)
?>

check number is positive or negative in php

if($number > 0){
  echo "the number is positive";
}
elseif($number < 0){
  echo "the number is negative";
}
else{
  echo "the number is zero";
}

php if negative make positive

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