Arrays 4/7
Access by Offset with [ ]
Each item in an array is numbered starting from 0. For example, when we create an array:
<?php
$myArray = array("do", "re", "mi");
?>
Each item is numbered starting from 0, like this:
+------+------+------+
| "do" | "re" | "mi" |
+------+------+------+
0 1 2
The item
"do" is in position 0, the item "re"is in position 1, and so on.
Therefore, we can access a particular item of the array using its position, like this:
<?php
$myArray = array("do", "re", "mi");
echo $myArray[0]
// outputs "do"
?>
- First we create an array named
$myArray - Then we use
echoto output the first item in$myArray. Since items are numbered starting from 0,"do"is at position 0.
Instructions
In line 8, there's an array named
$tens. Useecho to output the third item in $tens. Remember that items are numbered starting from 0.<html>
<head>
<title>Accessing Elements</title>
</head>
<body>
<p>
<?php
$tens = array(10, 20, 30, 40, 50);
echo $tens[2]
?>
</p>
</body>
</html>
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