ucfirst(): Converting the first char to upper case
Uppercase the first character
ucfirst() uppercases the first lowercase ASCII character when it is the first character of the string. It does not trim whitespace or provide Unicode title-casing. The multibyte example below requires the mbstring extension.
$text = 'php tutorial';
echo ucfirst($text); // Php tutorial
$output=ucfirst($input_str);
| Parameter | DESCRIPTION |
|---|---|
| $input_str | Required : Input string |
ucfirst() to change only the first character of a string to uppercase when it is an ASCII lowercase letter.
For example:
The remaining characters are unchanged, even when later words begin with lowercase letters.
$str="welcome to plus2net.com";
$str=ucfirst($str);
echo $str;
Welcome to plus2net.com
Try ucfirst() with your own text
Enter a string to see the converted result. The submitted value is escaped before it is returned to this HTML page.
Example 2: Capitalizing the First Character After Trimming Whitespace
Use ucfirst() with trim() to capitalize the first character of a string that may contain leading whitespace.
$str = " php tutorial";
$str = ucfirst(trim($str));
echo $str; // Outputs: Php tutorial
Example 3: Handling Non-ASCII Characters
Since ucfirst() doesn’t handle multibyte characters, for non-ASCII strings, define a helper using mb_substr() and mb_strtoupper() (requires mbstring):
function mb_ucfirst($str) {
return mb_strtoupper(mb_substr($str, 0, 1)) . mb_substr($str, 1);
}
echo mb_ucfirst("élève"); // Outputs: Élève
String Functions ucwords(): To Change first char of all words to upper case of a string. how to change all the letters to upper case
Subhendu Mohapatra
Author & Instructor at plus2net
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