Tips for solving Chinese garbled characters written by PHP into txt files. With the rapid development of the Internet, PHP, as a widely used programming language, is used by more and more developers. In PHP development, it is often necessary to read and write text files, including txt files that write Chinese content. However, due to encoding format problems, sometimes the written Chinese will appear garbled. This article will introduce some techniques to solve the problem of Chinese garbled characters written into txt files by PHP, and provide specific code examples. Problem analysis in PHP, text

Performance optimization methods for converting PHP arrays to JSON include: using JSON extensions and the json_encode() function; adding the JSON_UNESCAPED_UNICODE option to avoid character escaping; using buffers to improve loop encoding performance; caching JSON encoding results; and considering using a third-party JSON encoding library.

JSON data can be saved into a MySQL database by using the gjson library or the json.Unmarshal function. The gjson library provides convenience methods to parse JSON fields, and the json.Unmarshal function requires a target type pointer to unmarshal JSON data. Both methods require preparing SQL statements and performing insert operations to persist the data into the database.

Annotations in the Jackson library control JSON serialization and deserialization: Serialization: @JsonIgnore: Ignore the property @JsonProperty: Specify the name @JsonGetter: Use the get method @JsonSetter: Use the set method Deserialization: @JsonIgnoreProperties: Ignore the property @ JsonProperty: Specify name @JsonCreator: Use constructor @JsonDeserialize: Custom logic

PHP provides the following functions to process JSON data: Parse JSON data: Use json_decode() to convert a JSON string into a PHP array. Create JSON data: Use json_encode() to convert a PHP array or object into a JSON string. Get specific values ??of JSON data: Use PHP array functions to access specific values, such as key-value pairs or array elements.

In PHP programming, spaces are often encountered when processing strings, including Chinese spaces. In actual development, we often use the trim function to remove spaces at both ends of a string, but the processing of Chinese spaces is relatively complicated. This article will introduce how to use the trim function in PHP to process Chinese spaces and provide specific code examples. First, let us understand the types of Chinese spaces. In Chinese, spaces include not only common English spaces (space), but also some other special spaces.

PHP Tips: One Line of Code to Convert Numbers to Chinese Uppercase When developing PHP programs, sometimes you need to convert numbers to Chinese uppercase, for example, convert 12345 to "twelve thousand three hundred and forty-five". Below we will introduce a simple and practical way to implement this function in one line of code. //Convert numbers to Chinese uppercase functionnum2chinese($num){$array=array('zero','one','two','three','four',

PHP arrays can be converted to JSON strings through the json_encode() function (for example: $json=json_encode($array);), and conversely, the json_decode() function can be used to convert from JSON to arrays ($array=json_decode($json);) . Other tips include avoiding deep conversions, specifying custom options, and using third-party libraries.