Arrays

Creating Arrays

$arr = array("Alabama","Alaska", ... );

$arr = array(1=>"Alabama",2=>"Alaska", ... );

Iteration:

Array length - count($arr)

for($i=0; $i<count($arr); $i++) {
  echo "Element:$i - Value:$arr[$i]";
}

Other array functions:

• array_push() - Adds an element to the array
• array_pop() - takes off last array entry
• implode() - concatenates array elements
  $imp = implode(":",$array);
• explode() - creates an array out of a delimited string
  $exp = explode(":",$string);
• sort() - sorts an array
• rsort() - reverse sorts an array
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