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How can I use the PHP strtoupper function for the first two characters of a string? Or is there another function for that?
So the string 'hello' or 'Hello' must be converted to 'HEllo'.
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toUpperCase(char ch) converts the character argument to uppercase using case mapping information from the UnicodeData file.
To capitalize the first letter of a string in TypeScript: Use the charAt() method to get the first letter of the string. Call the toUpperCase() method on the letter. Use the slice() method to get the rest of the string. Concatenate the results.
To capitalize the first character of a string, We can use the charAt() to separate the first character and then use the toUpperCase() function to capitalize it.
To check if the first letter of a string is uppercase, call the toUppercase() method to convert the first letter to uppercase and compare it to itself. If the comparison returns true , then the first letter is uppercase.
$txt = strtoupper( substr( $txt, 0, 2 ) ).substr( $txt, 2 );
This works also for strings that are less than 2 characters long.
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