[英]Hash replacement with regular expression not working
在此文件中,我想用另一个哈希来更改UNDER_CONSTRUCTION_HASH,我使用正则表达式来实现。
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";
}
结果是这样的:
UNDER_CONSTRUCTION_HASH=y$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
代替这个:
UNDER_CONSTRUCTION_HASH=$2y$10$TwrFXK90UkJ4pq4grH1/hevPgkdOE4lEmPI9QbhVnwH1UEyYr/zA2
这有什么问题吗?
这是逃脱美元符号的问题。
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。 您需要将斜线停在它们前面,以按实际方式对待它们。
这是一个重写:
代码:( 演示 )
$envContent='MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1
MIX_PUSHER_APP_KEY="${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
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