PHP if else Statements

PHP if…else…elseif Statements

The PHP if-else statements are used to make decisions based on distinct conditions.
PHP keeps different types of decision-making conditions:

• if statement
• if…else statement
• if…else if….else statement
• switch statement

PHP – The if Statement

The body of the if statement performs some piece of code only if a specified condition is true.
Syntax

if(condition){
    // Code to be executed here
}

Example

$x=15;
$y=15;
if($a==$b)
{
echo"successful";
}

The if…else Statement

The if….else statement is used where the if the condition is not true then the else statement is executed.

Syntax

if(condition){
    // Code to be executed if condition is true
} else{
    // Code to be executed if condition is false
}

Example

$x=15;
$y=15;
if($a==$b)
{
echo"successfuly executed";
}else
{
echo"loss";
}

PHP – The if…elseif….else Statement

The if…elseif…else is a special statement to execute when multiple conditions are true.

if(condition1){
    // Code to be executed if condition1 is true
} elseif(condition2){
    // Code to be executed if the condition1 is false and condition2 is true
} else{
    // Code to be executed if both condition1 and condition2 are false
}

Example

$x=15;
$y=15;
$z=15;
if($x > $y and $x > $z)
{
echo"x is biggest.";
}
elseif($y > $x and $y > $z)
{
echo"y is biggest";
}
elseif($z > $x and $z > $y)
{
echo" c is biggest";
}
else
{
echo"x=y=z";
}