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What is a FOR loop PHP?
The for loop in PHP is used when you know in advance how many times the script should run.

Syntax:

<?php
for (initialization; condition; increment)
{
code to be executed;
}
?>

Where:
Initialization: Is used to set a counter.
Condition: Evaluated for each loop iteration. If it evaluates TRUE, the loop continues. If it evaluates FALSE, the loop ends..
Increment: Used to increases the loop counter value.

 

PHP for loop example

Consider the following examples. All of them display the numbers from 11 through 20:

Example (this is HTML - PHP editor, change text on this window)

<?php
/* example 1 */
for ($i = 11; $i <= 20; $i++) {
echo $i. ", ";
}
echo "<br /><br />";

/* example 2 */
for ($i = 11; ; $i++) {
if ($i > 20) {
break;
}
echo $i. ", ";
}
echo "<br /><br />";

/* example 3 */
$i = 11;
for (; ; ) {
if ($i > 20) {
break;
}
echo $i. ", ";
$i++;
}
echo "<br /><br />";

/* example 4 */
for ($i = 1, $j = 0; $i <= 10; $j += $i, print $i, $i++);
?>

 

Related subjects:
PHP foreach What is an array Convert array to string comma Array to comma separated

Tags: What is a FOR loop PHP?
php for loop: array, array length, example, break, continue, in html, increment by 10, increment by 2, index, associative array

 

PHP for loop break

The break loop statement can be used to jump out of a loop.
This example jumps out of the for loop when my_number is equal to 15:

Example (this is HTML - PHP editor, change text on this window)
<?php
for ($my_number = 9; $my_number < 20; $my_number++) {
if ($my_number == 15) {
break;
}
echo "My number is: $my_number <br>";
}
?>

 

PHP for loop continue

The for loop continue statement breaks one iteration in the loop, if a specified condition occurs, and continues with the next iteration in the loop.
The example below does not display My number 16

Example (this is HTML - PHP editor, change text on this window)
<?php
for ($my_number = 12; $my_number < 22; $my_number++) {
if ($my_number == 16) {
continue;
}
echo "My number is: $my_number <br>";
}
?>

 



What is a FOR loop PHP? php for loop: array, array length, example, break, continue, in html, increment by 10, increment by 2, index, associative array
PHP for loop - php tutorial

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