PHP If...Else Statements | asadmukhtar.info

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PHP If...Else Statements

What Are If...Else Statements?

if...else statements in PHP allow conditional execution of code based on different conditions.

Types of If...Else Statements

1️⃣ if Statement (Executes a block of code if the condition is `true`)

$age = 18;
if ($age >= 18) {
    echo "You are eligible to vote.";
}

✔ If $age is 18 or more, it prints "You are eligible to vote."

2️⃣ if...else Statement (Executes one block if true, another if false)

$age = 16;
if ($age >= 18) {
    echo "You can vote.";
} else {
    echo "You are too young to vote.";
}

✔ If $age is 16, the else block runs.

3️⃣ if...elseif...else Statement (Checks multiple conditions)

$score = 75;
if ($score >= 90) {
    echo "Grade: A";
} elseif ($score >= 70) {
    echo "Grade: B";
} else {
    echo "Grade: C";
}

✔ If $score is 75, it prints "Grade: B".

4️⃣ Nested if Statement (if inside another if)

$age = 20;
$hasID = true;
if ($age >= 18) {
    if ($hasID) {
        echo "You can enter.";
    } else {
        echo "You need an ID.";
    }
}

✔ If $age is 20 and $hasID is true, it prints "You can enter.".

Conclusion

✔ if checks conditions and runs code if true.
✔ if...else executes different blocks based on conditions.
✔ if...elseif...else allows multiple condition checks.
✔ Nesting if statements helps with complex logic. 🚀