Solution to the problem that json_decode cannot parse the special question mark character in PHP

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.

The DECODE function in Oracle database is a very commonly used function, which can select among a set of values ​​based on the result value of an expression. The syntax of the DECODE function is as follows: DECODE(expression, search_value1, result1, search_value2, result2,..., default_result) where expression is the expression to be compared, s

MySQL5.7 and MySQL8.0 are two different MySQL database versions. There are some main differences between them: Performance improvements: MySQL8.0 has some performance improvements compared to MySQL5.7. These include better query optimizers, more efficient query execution plan generation, better indexing algorithms and parallel queries, etc. These improvements can improve query performance and overall system performance. JSON support: MySQL 8.0 introduces native support for JSON data type, including storage, query and indexing of JSON data. This makes processing and manipulating JSON data in MySQL more convenient and efficient. Transaction features: MySQL8.0 introduces some new transaction features, such as atomic

The DECODE function in Oracle is a conditional expression that is often used to return different results based on different conditions in query statements. This article will introduce the syntax, usage and sample code of the DECODE function in detail. 1. DECODE function syntax DECODE(expr,search1,result1[,search2,result2,...,default]) expr: the expression or field to be compared. search1,

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

Quick Start: Pandas method of reading JSON files, specific code examples are required Introduction: In the field of data analysis and data science, Pandas is one of the important Python libraries. It provides rich functions and flexible data structures, and can easily process and analyze various data. In practical applications, we often encounter situations where we need to read JSON files. This article will introduce how to use Pandas to read JSON files, and attach specific code examples. 1. Installation of Pandas

JavaScript tutorial: How to get HTTP status code, specific code examples are required. Preface: In web development, data interaction with the server is often involved. When communicating with the server, we often need to obtain the returned HTTP status code to determine whether the operation is successful, and perform corresponding processing based on different status codes. This article will teach you how to use JavaScript to obtain HTTP status codes and provide some practical code examples. Using XMLHttpRequest

In-depth understanding of PHP: Implementation method of converting JSONUnicode to Chinese During development, we often encounter situations where we need to process JSON data, and Unicode encoding in JSON will cause us some problems in some scenarios, especially when Unicode needs to be converted When encoding is converted to Chinese characters. In PHP, there are some methods that can help us achieve this conversion process. A common method will be introduced below and specific code examples will be provided. First, let us first understand the Un in JSON