What is the usage of PHP built-in encode?

php editor Yuzai today introduces to you the usage of encode in the built-in function of php. The encode function is mainly used to encode data in PHP, and is often used to process special characters or encrypt data. Through the encode function, data security can be effectively protected and data can be prevented from being maliciously tampered with or stolen. In PHP development, mastering the use of the encode function is crucial for data processing and can improve the security and stability of the program.

1. base64_encode(): Base64 encode the string . Usage: $encodedString = base64_encode($string);

2. base64_decode(): Decode the Base64 encoded string. Usage: $decodedString = base64_decode($encodedString);

3. urlencode(): Encode special characters in the URL. Usage: $encodedString = urlencode($string);

4. urldecode(): Decode special characters in the URL. Usage: $decodedString = urldecode($encodedString);

5. htmlentities(): Convert special characters in the string to HTML entities. Usage: $encodedString = htmlentities($string);

6. html_entity_decode(): Restore HTML entities to original characters. Usage: $decodedString = html_entity_decode($encodedString);

7. JSON_encode(): Convert a php object or array to a jsON string. Usage: $jsonString = json_encode($data);

8. json_decode(): Convert JSON string to PHP object or array. Usage: $data = json_decode($jsonString);

These functions can be selected and used according to specific needs, and are used to encode and decode strings, URLs, HTML entities and JSON data.

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