PHP comparison operators

comparison.php

<!-- 
    PHP Comparison Operators

The PHP comparison operators are used to compare two values (number or string):
== 	   Equal 	$x == $y 	Returns true if $x is equal to $y 	
===    Identical 	$x === $y 	Returns true if $x is equal to $y, and they are of the same type 	
!= 	   Not equal 	$x != $y 	Returns true if $x is not equal to $y 	
<>     Not equal 	$x <> $y 	Returns true if $x is not equal to $y 	
!==    Not identical 	$x !== $y 	Returns true if $x is not equal to $y, or they are 
                                not of the same type 	
>      Greater than 	$x > $y 	Returns true if $x is greater than $y 	
< 	   Less than 	$x < $y 	Returns true if $x is less than $y 	
>= 	   Greater than or equal to  $x >= $y 	Returns true if $x is greater than or equal to $y 	
<= 	   Less than or equal to 	$x <= $y 	Returns true if $x is less than or equal to $y
 -->
 <?php
 $num1=10;
 $num2=7;
 $numStr='10';

 //always true
 if(true){
     echo 'I am always true'.'<br>';
 }

 //always false

 if(false){
     echo 'I am true'.'<br>';
 }else{
     echo 'I am always false'.'<br>';
 }
//return true if $num1 is equal to $numStr 
 if($num1==$numStr){
     echo 'we are same'.'<br>';
 }

 //return true if $num1 is identical to $numStr and same type
 if($num1===$numStr){
    echo 'we are identical'.'<br>';
}else{
echo 'We are not identical'.'<br>';
}

 //return true if $num1 is not equal to $num2
 if($num1!=$num2){
    echo 'we are not same'.'<br>';
}
// same as !=
if($num1<>$num2){
    echo 'we are not same'.'<br>';
}

if($num1!==$numStr){
    echo 'we are not identical'.'<br>';
}
//return true if $num1 is greater than $num2
if($num1>$num2){
    echo $num1.' is greater than '.$num2.'<br>';
}else{
    echo $num2.' is greater than '.$num1.'<br>';
}
//return true if $num1 is less than $num2
if($num1<$num2){
    echo $num1.' is less than '.$num2.'<br>';
}else{
    echo $num2.' is less than '.$num1.'<br>';
}


//return true if $num1 is greater than or equal to $num2
if($num1>=$num2){
    echo $num1.' is greater than or equal to'.$num2.'<br>';
}else{
    echo $num2.' is greater than or equal to'.$num1.'<br>';
}
//return true if $num1 is less than or equal to $num2 
if($num1<$num2){
    echo $num1.' is less than or equal to '.$num2.'<br>';
}else{
    echo $num2.' is less than or equal to '.$num1.'<br>';
}








?>