Comparative study of PHP code static analysis tools
The purpose of the research is a comparative analysis of static PHP code analysis tools to assess their effectiveness in identifying errors, potential vulnerabilities, and typing problems in the early stages of web application development. Particular attention is paid to determining the practical applicability of the solutions under consideration in projects of various scales, as well as their impact on improving software quality, reducing the number of defects in the code and minimizing security risks. Methods . The study uses a comparative analysis method based on testing tools on a set of typical scenarios reflecting common errors and vulnerabilities of PHP applications. The tools were evaluated according to the criteria of completeness of error detection, accuracy of diagnosis, flexibility of rule configuration, ease of integration into the development process, productivity and resource consumption. Additionally, an analysis of documentation and configuration options was performed. All experiments were carried out repeatedly to ensure the statistical reliability of the results. Results . The study revealed differences in the depth of analysis, the rigor of type checking, and the mechanisms for configuring rules. It has been found that the tools exhibit varying sensitivity to logical errors, type inconsistencies, and potentially unsafe designs. Their strengths and weaknesses have been identified in the context of use in small and large projects. Conclusion . The results confirm the effectiveness of using static analysis tools as a means of improving the quality and security of PHP code. The choice of a specific solution should be based on the requirements of the project, the level of rigor of the analysis and the specifics of the development process. Regular use of such tools can significantly reduce the risk of defects and vulnerabilities, increasing the reliability and stability of web applications.