php_scope.php

<?php 
/**
 * Variable Scope Example #1:  
 * 
 * $temp = preceding text.
 * notice DECLARED var name $temp and var passed into somedate() don't have to match
 * but RETURNED var name and passed var must match
 **/

	$temp = "Ex. #1: The date is "; // set outside function
	echo somedate( $temp, time() ); // but passed in as $arg 

	function somedate( $text, $timestamp ) { // passed, returned $var must match
		return $text . date( "l F jS Y", $timestamp );
}

function somedate2() {
	$temp2 = date( 'l F jS Y', time() ); // var set inside function is out of scope in non-function code.
  
	echo "<h4>$temp2 set inside somedate() function will display</h4>";
	return "<p>This is <code style='font-size: 15px;color:red;'>somedate()</code> as returned inside function: $temp2" . "</p>";
	}
	// $temp2 displays bc it's in scope (inside delared function)
	echo somedate2();

	// $temp2 won't display... WHY?
	echo '<p>This is $temp2 var: ' . $temp2 . '</p>';
?>