How to use numeric array in PHP
In this article, I will explain how the numeric array can be used in PHP.
Array in PHP
- An array is a data structure that stores one or more similar type of values in a single value.
- Each element in the array has its own index so that it can be easily accessed.
- An array in PHP is a collection of key/value pairs.
There are three different kind of arrays and each array value is accessed using an ID c which is called array index.
- Numeric array - An array with a numeric index. Values are stored and accessed in linear fashion
- Associative array - An array with strings as index. This stores element values in association with key values rather than in a strict linear index order.
- Multidimensional array - An array containing one or more arrays and values are accessed using multiple indices
Numeric Array
- Numeric array stores each array element with a numeric index.
Example
Following is the example showing how to create and access numeric arrays.
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<html>
<body>
<h2 style="color: red;">Numeric Array example</h2>
<?php
/* First method to create array. */
$num = array( 1, 2, 3, 4, 5);
foreach( $num as $value )
{
echo "Array Value is $value <br />";
}
/* Array create with key */
$num[0] = "one";
$num[1] = "two";
$num[2] = "three";
$num[3] = "four";
$num[4] = "five";
foreach( $num as $value )
{
echo "Array Value is $value <br />";
}
?>
</body>
</html>
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Output
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