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This article comprehensively explores methods for checking string prefixes and suffixes in PHP, including built-in functions str_starts_with and str_ends_with in PHP 8.0 and above, as well as custom implementations for earlier versions. Through code examples and in-depth analysis, it covers function syntax, parameters, return values, case sensitivity handling, practical applications such as file extension validation and URL protocol checks, and performance considerations to assist developers in efficient string manipulation.

This article provides an in-depth exploration of request data access and processing in the Flask framework, detailing various attributes of the request object and their appropriate usage scenarios, including query parameters, form data, JSON data, and file uploads, with complete code examples demonstrating best practices for data retrieval across different content types.