define(3) [php man page]

DEFINE(3)								 1								 DEFINE(3)

define - Defines a named constant

SYNOPSIS

       bool define (string  $name, mixed  $value, [bool  $case_insensitive = false])

DESCRIPTION

	Defines a named constant at runtime.

PARAMETERS

	      o $name
		- The name of the constant.

	      o $value
		- The value of the constant; only scalar and null values are allowed. As of PHP 7 it also possible to use array value. Scalar val-
		ues are integer, float, string or boolean values. It is possible to define resource constants, however it is not  recommended  and
		may cause unpredictable behavior.

	      o $case_insensitive
		-  If  set to TRUE, the constant will be defined case-insensitive. The default behavior is case-sensitive; i.e.  CONSTANT and Con-
		stant represent different values.

	      Note

		      Case-insensitive constants are stored as lower-case.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

CHANGELOG

       +--------+---------------------------+
       |Version |			    |
       |	|			    |
       |	|	 Description	    |
       |	|			    |
       +--------+---------------------------+
       | 7.0.0	|			    |
       |	|			    |
       |	|			    |
       |	| array values are allowed. |
       |	|			    |
       +--------+---------------------------+
EXAMPLES

       Example #1

	      Defining Constants

	      <?php
	      define("CONSTANT", "Hello world.");
	      echo CONSTANT; // outputs "Hello world."
	      echo Constant; // outputs "Constant" and issues a notice.

	      define("GREETING", "Hello you.", true);
	      echo GREETING; // outputs "Hello you."
	      echo Greeting; // outputs "Hello you."

	      // Works as of PHP 7
	      define('ANIMALS', array(
		  'dog',
		  'cat',
		  'bird'
	      ));
	      echo ANIMALS[1]; // outputs "cat"

	      ?>

SEE ALSO

       defined(3), constant(3), The section on Constants.

PHP Documentation Group 														 DEFINE(3)

STRISTR(3)								 1								STRISTR(3)

stristr - Case-insensitivestrstr(3)

SYNOPSIS

       string stristr (string  $haystack, mixed  $needle, [bool  $before_needle = false])

DESCRIPTION

	Returns all of $haystack starting from and including the first occurrence of $needle to the end.

PARAMETERS

	      o $haystack
		- The string to search in

	      o $needle
		- If $needle is not a string, it is converted to an integer and applied as the ordinal value of a character.

	      o $before_needle
		- If TRUE, stristr(3) returns the part of the $haystack before the first occurrence of the $needle (excluding needle).

       $needle and $haystack are examined in a case-insensitive manner.

RETURN VALUES

	Returns the matched substring. If $needle is not found, returns FALSE.

CHANGELOG

       +--------+-----------------------------------------------+
       |Version |						|
       |	|						|
       |	|		   Description			|
       |	|						|
       +--------+-----------------------------------------------+
       | 5.3.0	|						|
       |	|						|
       |	|  Added the optional parameter $before_needle. |
       |	|						|
       | 4.3.0	|						|
       |	|						|
       |	|	stristr(3) was made binary safe.	|
       |	|						|
       +--------+-----------------------------------------------+
EXAMPLES

       Example #1

	      stristr(3) example

	      <?php
		$email = 'USER@EXAMPLE.com';
		echo stristr($email, 'e'); // outputs ER@EXAMPLE.com
		echo stristr($email, 'e', true); // As of PHP 5.3.0, outputs US
	      ?>

       Example #2

	      Testing if a string is found or not

	      <?php
		$string = 'Hello World!';
		if(stristr($string, 'earth') === FALSE) {
		  echo '"earth" not found in string';
		}
	      // outputs: "earth" not found in string
	      ?>

       Example #3

	      Using a non "string" needle

	      <?php
		$string = 'APPLE';
		echo stristr($string, 97); // 97 = lowercase a
	      // outputs: APPLE
	      ?>

NOTES

       Note

	      This function is binary-safe.

SEE ALSO

       strstr(3), strrchr(3), stripos(3), strpbrk(3), preg_match(3).

PHP Documentation Group 														STRISTR(3)