The do...while loop – Loops through a block of code once, and then repeats the loop as long as the specified condition is true.
The do...while loop will always execute the block of code at least once, it will then check the condition, and repeat the loop while the specified condition is true. Continue reading PHP do while Loop
The while loop – Loops through a block of code as long as the specified condition is true
The while loop executes a block of code as long as the specified condition is true.
Print $i as long as $i is less than 6:
$i = 1;
while ($i < 6) {
echo $i;
$i++;
}
Note: remember to increment $i, or else the loop will continue forever.
The while loop does not run a specific number of times, but checks after each iteration if the condition is still true.
The condition does not have to be a counter, it could be the status of an operation or any condition that evaluates to either true or false. Continue reading PHP while Loop
In the following chapters you will learn how to repeat code by using loops in PHP.
Often when you write code, you want the same block of code to run over and over again a certain number of times. So, instead of adding several almost equal code-lines in a script, we can use loops. Continue reading PHP Loops
The switch statement is used to perform different actions based on different conditions.
Use the switch statement to select one of many blocks of code to be executed. Continue reading PHP switch Statement
You can have if statements inside if statements, this is called nested if statements. Continue reading PHP Nested if Statement
To write shorter code, you can write if statements on one line.
One-line if statement:
$a = 5;
if ($a < 10) $b = "Hello";
echo $b
The if...else statement executes some code if a condition is true and another code if that condition is false. Continue reading PHP if…else Statements
If statements usually contain conditions that compare two values.
Check if $t is equal to 14:
$t = 14;
if ($t == 14) {
echo "Have a good day!";
}
To compare two values, we need to use a comparison operator. Continue reading PHP if Operators
Conditional statements are used to perform different actions based on different conditions.
Very often when you write code, you want to perform different actions for different conditions. You can use conditional statements in your code to do this.
In PHP we have the following conditional statements:
if statement – executes some code if one condition is trueOperators are used to perform operations on variables and values.
PHP divides the operators in the following groups: