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Definition and Usage. The strtoupper () function converts a string to uppercase. Note: This function is binary-safe. Related functions: 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.
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strtoupper (string $string): string. Returns string with all ASCII alphabetic characters converted to uppercase. Bytes in the range "a" (0x61) to "z" (0x7a) will be converted to the corresponding uppercase letter by subtracting 32 from each byte value.
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The strtoupper() function in PHP is a useful tool for converting all lowercase letters in a string to uppercase. It is particularly useful when working with text-based applications where case sensitivity is important. By understanding how to use the strtoupper() function, developers can create more efficient and effective PHP applications.
12 lip 2023 · The strtoupper() function converts all the characters in a string to uppercase. Syntax. strtoupper(string_to_convert); The string_to_convert parameter is the string that will be converted to uppercase. Example. The following code demonstrates the use of strtoupper() to alter a string. <?php. echo strtoupper("hello, world!"); ?>
5 lip 2023 · The strtoupper() function is used to convert all the characters in a string to uppercase. I remember using strtoupper() in a project where I had to format user inputs to ensure consistency. For instance, in a form where users entered their addresses, I wanted to convert all the characters in the city name to uppercase.
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