only uppercase first character?

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LEARN ABOUT PHP

ctype_upper

CTYPE_UPPER(3)								 1							    CTYPE_UPPER(3)

ctype_upper - Check for uppercase character(s)

SYNOPSIS

       bool ctype_upper (string  $text)

DESCRIPTION

	Checks if all of the characters in the provided string, $text, are uppercase characters.

PARAMETERS

	      o $text
		- The tested string.

RETURN VALUES

	Returns TRUE if every character in $text is an uppercase letter in the current locale.

EXAMPLES

       Example #1

	      A ctype_upper(3) example (using the default locale)

	      <?php
	      $strings = array('AKLWC139', 'LMNSDO', 'akwSKWsm');
	      foreach ($strings as $testcase) {
		  if (ctype_upper($testcase)) {
		      echo "The string $testcase consists of all uppercase letters.
";
		  } else {
		      echo "The string $testcase does not consist of all uppercase letters.
";
		  }
	      }
	      ?>

	      The above example will output:

	      The string AKLWC139 does not consist of all uppercase letters.
	      The string LMNSDO consists of all uppercase letters.
	      The string akwSKWsm does not consist of all uppercase letters.

NOTES

       Note

	       If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val-
	      ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string  contain-
	      ing the decimal digits of the integer.

SEE ALSO

       ctype_alpha(3), ctype_lower(3), setlocale(3).

PHP Documentation Group 													    CTYPE_UPPER(3)

Shell Programming and Scripting