Zkontrolujte, zda je hodnota záporná php

Příklady kódu

1
0

kontrolní číslo je v php kladné nebo záporné

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

php, pokud negativní, aby pozitivní

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

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