使用Nikic PhpParser修改php文件中的数组变量[php]

<?php
$array = [
    'key1' => 'value1',
    'key2' => 'value2',
];
?>

<?php
require 'vendor/autoload.php';

use PhpParser\NodeTraverser;
use PhpParser\NodeVisitor\SimpleVisitor;
use PhpParser\ParserFactory;

// 创建解析器
$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);

// 解析 PHP 文件
$code = file_get_contents('example.php');
$ast = $parser->parse($code);

// 创建一个访问者来修改 AST
$visitor = new class extends SimpleVisitor {
    public function enterNode(Node $node) {
        if ($node instanceof \PhpParser\Node\Expr\Assign && $node->var instanceof \PhpParser\Node\Expr\Variable && $node->var->name === 'array') {
            foreach ($node->expr->children as $key => $child) {
                if ($child instanceof \PhpParser\Node\Expr\ArrayItem && $child->key->value === 'key1') {
                    $child->key->value = 'newKey1';
                }
            }
        }
    }
};

// 遍历并修改 AST
$traverser = new NodeTraverser();
$traverser->addVisitor($visitor);
$modifiedAst = $traverser->traverse($ast);

// 将修改后的 AST 转换回 PHP 代码
$printer = new \PhpParser\PrettyPrinter\Standard();
$modifiedCode = $printer->print($modifiedAst);

// 将修改后的代码写回文件
file_put_contents('example_modified.php', $modifiedCode);
?>