Question

How to use comparison operators in PHP

Answer 1

$x = 100;
$y = 100;
if ($x == $y)  // true if $x is equal to $y     
    echo "x = y <br />";
    
$x = 100;
$y = 100.0;
if ($x === $y) // true if $x is equal to $y, and with the same type     
    echo "x === y <br />";
else
    echo "x not equal to y <br />";
    
$x = 100;
$y = 9;
if ($x != $y) // true if $x is not equal to $y     
    echo "x != y <br />";
if ($x <> $y) // true if $x is not equal to $y     
    echo "x <> y <br />";
    
$x = 100;
$y = 100.0;
if ($x !== $y) // true if $x is not equal to $y, or they are not with the same type 
    echo "x !== y <br />";    
    
$x = 100;
$y = 7;
if ($x > $y) // true if $x is greater than $y 
    echo "x > y <br />";
    
$x = 100;
$y = 180;
if ($x < $y) // true if $x is less than $y     
    echo "x < y <br />";
    
$x = 180;
$y = 180;
if ($x >= $y) // true if $x is greater than or equal to $y     
    echo "x >= y <br />";
if ($x <= $y) // true if $x is less than or equal to $y
    echo "x <= y <br />";



/*
run:

x = y 
x not equal to y 
x != y 
x <> y 
x !== y 
x > y 
x < y 
x >= y 
x <= y 

*/

 

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