How do you like your coffee?


View Poll Results: How do you like your coffee
Cappuccino 9 37.50%
Black 8 33.33%
Espresso 7 29.17%
I don't drink coffee. 6 25.00%
Latte 6 25.00%
Cream 4 16.67%
Sugar 4 16.67%
Cream and Sugar 2 8.33%
Iced Varieties 2 8.33%
Other 2 8.33%
Decaf 0 0%
Multiple Choice Poll. Voters: 24. This poll is closed

 
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The Lounge What is on Your Mind? How do you like your coffee?
# 15  
Old 09-30-2009
2 short ristretto in a espresso cup (no room for milk or sugar...)
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LIST(3) 								 1								   LIST(3)

list - Assign variables as if they were an array

SYNOPSIS
array list (mixed $var1, [mixed $...]) DESCRIPTION
Like array(3), this is not really a function, but a language construct. list(3) is used to assign a list of variables in one operation. PARAMETERS
o $var1 - A variable. RETURN VALUES
Returns the assigned array. EXAMPLES
Example #1 list(3) examples <?php $info = array('coffee', 'brown', 'caffeine'); // Listing all the variables list($drink, $color, $power) = $info; echo "$drink is $color and $power makes it special. "; // Listing some of them list($drink, , $power) = $info; echo "$drink has $power. "; // Or let's skip to only the third one list( , , $power) = $info; echo "I need $power! "; // list() doesn't work with strings list($bar) = "abcde"; var_dump($bar); // NULL ?> Example #2 An example use of list(3) <table> <tr> <th>Employee name</th> <th>Salary</th> </tr> <?php $result = $pdo->query("SELECT id, name, salary FROM employees"); while (list($id, $name, $salary) = $result->fetch(PDO::FETCH_NUM)) { echo " <tr> " . " <td><a href="info.php?id=$id">$name</a></td> " . " <td>$salary</td> " . " </tr> "; } ?> </table> Example #3 Using nested list(3) <?php list($a, list($b, $c)) = array(1, array(2, 3)); var_dump($a, $b, $c); ?> int(1) int(2) int(3) Example #4 Using list(3) with array indices <?php $info = array('coffee', 'brown', 'caffeine'); list($a[0], $a[1], $a[2]) = $info; var_dump($a); ?> Gives the following output (note the order of the elements compared in which order they were written in the list(3) syntax): array(3) { [2]=> string(8) "caffeine" [1]=> string(5) "brown" [0]=> string(6) "coffee" } NOTES
Warning list(3) assigns the values starting with the right-most parameter. If you are using plain variables, you don't have to worry about this. But if you are using arrays with indices you usually expect the order of the indices in the array the same you wrote in the list(3) from left to right; which it isn't. It's assigned in the reverse order. Warning Modification of the array during list(3) execution (e.g. using list($a, $b) = $b) results in undefined behavior. Note list(3) only works on numerical arrays and assumes the numerical indices start at 0. SEE ALSO
each(3), array(3), extract(3). PHP Documentation Group LIST(3)

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