How do PHP libraries interact with external languages?

PHP provides a series of function libraries to interact with external languages, including: PHP-JS: calling JavaScript functions PHP-CPP: calling C functions PHP-Python: calling Python functions

PHP function library to interact with external languages

PHP provides a series of function libraries to help developers interact with other languages ​​​​such as JavaScript, C and Python. These function libraries include:

• PHP-JS: Use PHP scripts to call JavaScript functions.
• PHP-CPP: Call C functions using PHP.
• PHP-Python: Use PHP to call Python functions.

Practical case: PHP-JS interaction

The following code demonstrates how to use the PHP-JS function library to call JavaScript functions:

<?php
include('php-js.php'); // 导入 PHP-JS 函数库

$js_function = "function sum(a, b) { return a + b; }"; // JavaScript 函数
js_execute($js_function); // 执行 JavaScript 函数

$result = js_call('sum', 5, 10); // 调用 JavaScript 函数并获取返回结果
echo "Sum: $result"; // 输出结果
?>

Output:

Sum: 15

Other examples

PHP-CPP interaction:

// C++ 代码
extern "C"
{
    int multiply(int a, int b);
}

// PHP 代码
<?php
$my_function = 'multiply'; // C++ 函数名称
$result = call_user_func($my_function, 5, 10);
echo "Product: $result"; // 输出结果
?>

PHP-Python interaction:

# Python 代码
def divide(a, b):
    return a / b

# PHP 代码
$python_function = 'divide'; // Python 函数名称
$result = call_user_func_array($python_function, [10, 2]);
echo "Quotient: $result"; // 输出结果

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