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→Using Array Pointers
The first element is Red
The next element is Yellow
</pre>
== Changing, Adding and Removing Array Elements ==
An array element can be changed by assigning a new value to using the appropriate index key. For example to change teh firsty element of an array:
<pre>
$colorArray = array("Red", "Yellow", "Green", "Blue", "Indigo");
$colorArray[0] = "Orange";
</pre>
A new item can be added to the end of an array using the ''array_push()'' function. This function takes two arguments, the first being the name of the array and the second the value to be added:
<pre>
$colorArray = array("Red", "Yellow", "Green", "Blue", "Indigo");
array_push($colorArray, "White");
</pre>
A new element can be inserted at the start of the array using the ''array_shift()'' function which takes the array anem and the value to be added as arguments:
<pre>
$colorArray = array("Red", "Yellow", "Green", "Blue", "Indigo");
array_shift($colorArray, "White"); // Add White to start of array
</pre>
The last item added to an array can be removed from the array using the array_pop() function. The following example removes the last element added:
<pre>
$colorArray = array("Red", "Yellow", "Green", "Blue", "Indigo");
array_push($colorArray, "White"); // Add White to end of array
array_pop($colorArray); // Remove White from the end of teh array
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The first item in the array can be removed using the ''array_unshift()'' function:
<pre>
$colorArray = array("Red", "Yellow", "Green", "Blue", "Indigo");
array_shift($colorArray, "White"); // Add White to start of array
array_unshift($colorArray) // Remove White from the start of the array
</pre>
