如何在PHP中使用If语句合并两个参数

Question

I really need your help here. I'd like to know how I can use two arguments greater than(>) and less than (<) in a single if statement. I was trying to do this in my code below, but I keep on getting an error message on the 'else' statement.

<?php

$value1="7";
if($value1<78);
if($value1>7);
{print"Yes, the answer is above 7 but below 78";} 

else 

{print"that's not correct";}


?>

Any help would be much appreciated, thanks.

Answer 1

Use && :

if($value1 < 78 && $value1 > 7){
    print"Yes, the answer is above 7 but below 78";
} 
else {
    print"that's not correct";
}

See: Control Structures and Logical Operators

Answer 2

<?php
$value1="7";
if($value1<78 && $value1>7)
{
    print "Yes, the answer is above 7 but below 78";
} 
else 
{
    print"that's not correct";
}
?>

Answer 3

As others have mentioned, use PHPs && (and) to combine logic.

As an alternate to if/else methods listed here, you can use PHP's ternary operators .

Something like this:

echo ($value1<78 && $value1>7)
    ? "Yes, the answer is above 7 but below 78."
    : "That's not correct";