How to get single value from an array in PHP?
Answer: Using array index or key
In this lesson, we will learn how to get the single value from the array in PHP.
There are three types of the array in PHP, which are:
- index array
- associative array
- multi-dimensional array
We can get a single value from any of the arrays using the array index or key.
Getting value from an indexed array
In an indexed array, all the array elements are represented by the index, which is a numeric value starting from 0 (zero). We can get the single array value from the indexed array either using array index or key.
Example: Getting a single value from an indexed array
In this example, we have accessed the single value from the indexed array using the array index.
<!DOCTYPE html>
<html>
<head>
<title>Getting single value from an array</title>
</head>
<body>
<?php
$proglang = array("C", "C++", "JavaScript", "jQuery", "PHP");
echo $proglang[0];
echo "<br>";
echo $proglang[2];
echo "<br>";
?>
</body>
</html>
Output
C
JavaScript
Getting value from an associative array
In an associative array, elements are stored in the form of key-value pairs. The index of the associative array is in the form of a string so that we can establish a strong association between key and values. We can get the single value from an associative array using the key.
Example: Getting value from an associative array
In this example, we have accessed the single value from the associative array using the key.
<!DOCTYPE html>
<html>
<head>
<title>Getting single value from an array</title>
</head>
<body>
<?php
$empId = array("Harry"=>1234, "John"=> 1235, "Miley"=>1236, "Williams"=>1237);
echo $empId["Harry"];
echo "<br>";
echo $empId["Miley"];
echo "<br>";
?>
</body>
</html>
Output
1234
1236
Getting value from the multidimensional array
The multi-dimensional arrays are those arrays that contain one or more than one array as its value. We can get the single value from the multi-dimensional array using the index value and the array key as well.
Example: Getting value from the multidimensional array
In this example, we have accessed the single value from the array using both array index and key.
<!DOCTYPE html>
<html>
<head>
<title>Getting single value from an array</title>
</head>
<body>
<?php
$employee = array(
array(
"name" => "Harry",
"empid" => "110",
),
array(
"name" => "John",
"age" => "111",
));
echo $employee[0]["name"];
?>
</body>
</html>
Output
Harry
Conclusion
In this lesson, we have learned how to get the single value from the array in PHP. We learned to fetch either by using the array index or key value.
