48 lines
1015 B
Markdown
48 lines
1015 B
Markdown
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---
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title: While Loop
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---
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## While Loop
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The `while loop` is one of the easiest type of loop in PHP. It executes the block of statements until the expression evaluates to **TRUE**. If the value of the expression changes at the time of execution, then the loop runs until the expression evaluates to **FALSE**.The Basic Form of While Loop is given below:
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```shell
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while (expr)
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statement
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```
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The Statements inside the while loop can be enclosed within the curly braces or can be used based on the following syntax:
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```shell
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while (expr):
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statement
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...
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endwhile;
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```
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Illustrating the simple and alternate syntax of while loop using example:
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```php
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<?php
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/* using the simple form of while loop */
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$i = 1; /* initialisation part */
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while ($i <= 100 && $i!=5 )
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{
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echo $i++;
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}
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/*using the alternate synatx of while loop*/
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$i = 0;
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while ($i <= 10):
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echo $i++;
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endwhile;
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?>
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```
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#### More Information
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[While loop - PHP Documentation](http://php.net/manual/en/control-structures.while.php)
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