在此文件中,我想将UNDER_CONSTRUCTION_HASH更改为另一个 哈希,我用正则表达式做。
文件:
MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1
MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
UNDER_CONSTRUCTION_HASH=y$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
我想将UNDER_CONSTRUCTION_HASH
替换为另一个:
$2y$10$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
我的代码一起看起来像这样:
$envContent = $this->filesystem->get($envPath);
$regex = '/UNDER_CONSTRUCTION_HASH=[^\s]+/';
$newLine = sprintf('UNDER_CONSTRUCTION_HASH=%s', $hash);
if (preg_match($regex, $envContent)) {
var_dump($newLine);
$envContent = preg_replace($regex, $newLine, $envContent);
} else {
$envContent .= "\n".$newLine."\n";
}
结果如下:
UNDER_CONSTRUCTION_HASH=y$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
而不是:
UNDER_CONSTRUCTION_HASH=$2y$10$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
这里可能有什么问题?
答案 0 :(得分:2)
这是逃避美元符号的问题。
将$hash
注入$newLine
并用作preg_replace()
的替换参数时,该函数假定$2
和$1
是捕获组引用。你需要在它们前面放置斜线才能对它们进行字面处理。
这是重写:
代码:(Demo)
$envContent='MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1
MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
UNDER_CONSTRUCTION_HASH=y$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2';
$hash = '$2y$10$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2';
$pattern = '/UNDER_CONSTRUCTION_HASH=\S+/';
$replace = "UNDER_CONSTRUCTION_HASH=".str_replace('$','\$',$hash); // <-- escape your dollar signs
$newLine = "UNDER_CONSTRUCTION_HASH=$hash";
$envContent = preg_replace($pattern, $replace, $envContent, -1, $count);
if(!$count){
//echo "no replacement made\n";
$envContent .= "\n".$newLine."\n";
}
echo $envContent;
输出:
MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1
MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
UNDER_CONSTRUCTION_HASH=$2y$10$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2