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In this article, I will show you how to make a string larger or smaller in PHP. First, let’s take a look at why this is needed.
PHP strtolower() Function
PHP uppercase or lowercase is required to achieve the following:
- To display data evenly on a webpage no matter how they are stored on the back-end.
- To compare a string with another string in case of case insensitive scenario.
You have two wires, TUTORIALPATH and Tutorialpath. These 2 strings are similar, but they did not find matches featuring LIKE in the Mysql statement. To achieve this, you can lower both wires and match them.
PHP | strtolower() Function
The Stratolover () function is used to convert a string to lowercase. This function takes a string as a parameter and converts all uppercase English characters present in the string to the lower part. All other numeric characters or special characters remain unchanged in the string.
|strtolower( $str )|
It converts all the characters of the string to lower-case.
$str = “Programming”;
$str = strtolower($str);
echo $str; // Output: programming
Example of strtolower() function in PHP:
<html> <body> <?php echo strtolower("TUTORIALPATH"); ?> </body> </html>
PHP | Uppercase – strtoupper()
The strtoupper () function is used to convert a string to uppercase. This function takes a string as a parameter and converts all lowercase English characters in the string to uppercase. All other numeric characters or special characters remain unchanged in the string.
string strtoupper ( $string )
It converts all the characters of the string to upper-case.
$str = “Programming is Interesting”;
$str = strtoupper($str);
echo $str; // Output: PROGRAMMING
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- strtolower() – converts a string to lowercase
- lcfirst() – converts the first character of a string to lowercase
- ucfirst() – converts the first character of a string to uppercase
- ucwords() – converts the first character of each word in a string to uppercase
- strtoupper($your_string) — This PHP function returns a string with all the alphabetic characters in the input string converted to uppercase.