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PHP Quiz PHP CertificatePHP strtolower() Function
Example
Convert all characters to lowercase:
<?php
echo strtolower("Hello WORLD.");
?>
echo strtolower("Hello WORLD.");
?>
Run example »
Definition and Usage
The strtolower() function converts a string to lowercase.
Note: This function is binary-safe.
Related functions:
- strtolupper() - converts a string to uppercase
- lcfirst() - converts the first character of a string to lowercase
- ucfirst() - converts the first character of a string to uppercase
- ucwords() - converts the first character of each word in a string to uppercase
Syntax
strtolower(string)
| Parameter | Description |
|---|---|
| string | Required. Specifies the string to convert |
Technical Details
| Return Value: | Returns the the lowercased string |
|---|---|
| PHP Version: | 4+ |
Complete PHP String Reference
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