How to convert data to different formats using PHP built-in functions?

PHP built-in functions can be used to perform the following data conversions: Number format conversion: decimal to octal (decoct()), decimal to hexadecimal (dechex()) String conversion to array: split characters by delimiter String (explode()) Convert JSON string to array (json_decode()) Convert array to JSON string (json_encode())

How to use PHP built-in functions to convert data Converting to different formats

PHP provides a wide range of built-in functions for converting data from one format to another. Understanding these functions is critical to effectively processing data in a variety of scenarios.

Practical case

Convert numbers to other bases

Use the decoct() function to convert decimal numbers to octal :

$num = 123;
$octal = decoct($num); // 173

Convert decimal number to hexadecimal using dechex() function:

$hex = dechex($num); // 7b

Convert string to array

Use the explode() function to split the string into an array by a specific delimiter:

$str = "PHP,MySQL,Laravel";
$arr = explode(",", $str); // ["PHP", "MySQL", "Laravel"]

Convert a JSON string to an array

Use json_decode() function to convert JSON string to PHP array:

$json = '{"name":"John", "age":30}';
$arr = json_decode($json, true); // ["name" => "John", "age" => 30]

Convert array to JSON string

Use json_encode() Function converts PHP array to JSON string:

$arr = ["name" => "John", "age" => 30];
$json = json_encode($arr); // '{"name":"John","age":30}'

More built-in functions

PHP provides more useful data conversion functions:

• strval(): Convert the variable to a string
• intval(): Convert the variable to an integer
• floatval(): Convert the variable to a floating point number
• boolval(): Convert the variable to a Boolean value
• base_convert(): Convert numbers between different bases
• parse_url(): Parse the URL into its components
• htmlspecialchars(): Convert HTML characters to HTML entities
• strip_tags(): Remove HTML and PHP tags from strings

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