Home > Article > Backend Development > PHP extension development: How to test and debug custom functions?
In PHP extension development, testing and debugging custom functions is very important. You can do this by following these steps: Set up a test environment, using tools like Docker, Vagrant, or Xdebug. Write test cases to verify the behavior of the function. Use tools like Xdebug to debug extensions and analyze execution steps and variable values.
In PHP extension development, it is crucial to test and debug custom functions to ensure Its correctness and efficiency. This article will guide you on how to perform these tasks.
It is critical to set up a test environment for testing PHP extensions. You can use the following tools:
Docker Vagrant Xdebug
<?php use PHPUnit\Framework\TestCase; class MyExtensionTest extends TestCase { public function testMyFunction() { $result = my_function('input'); $this->assertEquals('expected output', $result); } }
Use tools such as Xdebug for debugging.
zend_extension=xdebug.so xdebug.remote_enable=1 xdebug.remote_host=localhost xdebug.remote_port=9000
Open the debugger and analyze the execution steps and variable values.
Consider a custom my_function
that accepts a string $input
and returns the processed output.
ZEND_FUNCTION(my_function) { char *input; int input_len; ZEND_PARSE_PARAMETERS_START(1, 1) Z_PARAM_STRING(input, input_len) ZEND_PARSE_PARAMETERS_END(); // 处理输入并生成输出 RETURN_STRING(processed_output); }
<?php use PHPUnit\Framework\TestCase; class MyExtensionTest extends TestCase { public function testMyFunction() { $input = 'some input string'; $expected = 'processed output'; $result = my_function($input); $this->assertEquals($expected, $result); } }
phpunit MyExtensionTest
php -dxdebug.remote_enable=1 -dxdebug.remote_host=localhost -dxdebug.remote_port=9000 index.php
Start the debugger and connect to the PHP process. Use breakpoints and variable monitoring to analyze code behavior.
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