What is the difference between using == and <= in the for loop condition for iterating over a variable in PHP?

Using == in the for loop condition checks for equality, meaning the loop will iterate until the variable is equal to the specified value. On the other hand, using <= in the for loop condition checks for less than or equal to, meaning the loop will iterate until the variable is less than or equal to the specified value. Therefore, the choice between == and <= depends on whether you want the loop to iterate until the variable is equal to the value or less than or equal to the value.

// Using == to iterate until the variable is equal to the specified value
for($i = 0; $i == 5; $i++) {
    echo $i;
}

// Using <= to iterate until the variable is less than or equal to the specified value
for($i = 0; $i <= 5; $i++) {
    echo $i;
}