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Convert Array to String PHP

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Convert Array to String PHP

There is always an issue with manipulating arrays in PHP. Although they are widely used and fully supported, PHP faces a few drawbacks when working with arrays.

For example, to echo a single element of an array, you can convert the array to a string and print it on the screen.

In this tutorial, you will learn how to convert a PHP array to a string.

Using PHP Implode() Function

The PHP implode() function is a common method when working with arrays. It allows you to join elements in an array using a specified delimiter. The function returns the elements joined in a string format. Hence the function is handy when converting an array to a string.

NOTE: The function also provides the join() method as an alias.

The syntax of the function is as shown below:

The above function takes two arguments: a delimiter (also known as a separator) and an array, respectively.

The following example shows you how to convert an array to a string using the implode function.

<?php
$mean = array(“MongoDB”, “Express”, “Angular”, “NodeJS”);
echo $mean;
$imploded = implode(” “, $mean);
echo n, $imploded, n;
?>

This allows the function to return each element in the array as a single sentence.

The example output is as shown:

PHP Notice:  Array to string conversion in /home/ubuntu/strings.php on line 4
Array
MongoDB Express Angular NodeJS

NOTE: PHP will return a notice message if you run the echo method against an array.

You can also use another delimiter in the method as:

<?php
$mean = array(“MongoDB”, “Express”, “Angular”, “NodeJS”);
$imploded = implode(“, “, $mean);
echo n, $imploded, n;
?>

The resulting output is as shown:

MongoDB, Express, Angular, NodeJS

Using PHP json_encode() Function

The other way to convert an array to a string is the json_encode() function. This built-in method allows you to convert an array to a JSON string.

Take a look at the example shown below:

<?php
$mean = array(“MongoDB”, “Express”, “Angular”, “NodeJS”);
$json_data = json_encode($mean);
print_r ($json_data);
?>

Once we run the above code, we should see the array in JSON format as shown:

[“MongoDB”,“Express”,“Angular”,“NodeJS”]

Using PHP Serialize() Method

The serialize() method allows you to convert an array to a byte-stream string. Consider the example shown below:

<?php
$mean = array(“MongoDB”, “Express”, “Angular”, “NodeJS”);
$serialized = serialize($mean);
print_r ($serialized);
?>

Running the code should return a serialized string as:

a:4:{i:0;s:7:“MongoDB”;i:1;s:7:“Express”;i:2;s:7:“Angular”;i:3;s:6:“NodeJS”;}

Conclusion

This guide gives you the basics of converting a PHP array into a string using built-in methods.

Stay tuned for more tutorials.

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