我正在构建一个PHP web应用程序，用户可以从他们的ios/mac应用程序上传他们的字符串文件(由键和值组成)。我需要能够从这些文件中提取字符串，但似乎我的正则表达式技能是超越生锈。
例如，一个文件看起来像这样:
STRING1 = "hello";
"good = bye" = "good = bye";
NAME = "Your name is '"%@'"";
"semicolon;confusion" = "I love semicolons; I hate semicolons"; "forget new line" = "forgot new line!";
应该收益率:
[0] = ["STRING1","'"hello'""]
[1] = ["'"good = bye'"","'"good = bye'""]
[2] = ["NAME","'"Your name is '"%@'"'""]
[3] = ["'"semicolon;confusion'"","'"I love semicolons; I hate semicolons'""]
[4] = ["'"forget new line'"","'"forgot new line!'""]
谢谢!
试试这个:
$data = array();
$lines = file('filename.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
foreach($lines as $line)
while(preg_match('/^''s*("(?:[^"]|''''")*"|[^"]''w*)''s*=''s*("(?:[^"]|''''")*"|[^"]''w*)''s*;/', $line, $groups) == 1) {
// $group[1] contains the name, $group[2] contains the value
array_push($data, array($groups[1], $groups[2]));
$line = trim(substr($line, strlen($groups[0])));
}
我假设输入存在一个名为filename.txt的文件中，并使用它来填充行$lines的数组。如果需要的话，调整代码以另一种方式填充$lines应该是相当容易的。
如果您在这段代码的底部使用var_dump($data)，那么对于您上面给出的输入，您将得到以下输出:
array(5) {
[0]=> array(2) {
[0]=> string(7) "STRING1"
[1]=> string(7) ""hello""
}
[1]=> array(2) {
[0]=> string(12) ""good = bye""
[1]=> string(12) ""good = bye""
}
[2]=> array(2) {
[0]=> string(4) "NAME"
[1]=> string(21) ""Your name is "%@"""
}
[3]=> array(2) {
[0]=> string(21) ""semicolon;confusion""
[1]=> string(38) ""I love semicolons; I hate semicolons""
}
[4]=> array(2) {
[0]=> string(17) ""forget new line""
[1]=> string(18) ""forgot new line!""
}
}
我相信这就是你想要的数据格式。
如果它们看起来像您的示例中的对，则可以使用如下表达式进行匹配:
(?x)
(?<key> 'w++ | " (?: [^"'']++ | '' . )*+ " )
's*+ = 's*+
(?<val> " (?: [^"'']++ | '' . )*+ " )
's*+ ;
如果您希望允许不同的引号字符或非引号值，请相应地更改它。
的例子:
$str = <<<'__EOS__'
STRING1 = "hello";
"good = bye" = "good = bye";
NAME = "Your name is '"%@'"";
"semicolon;confusion" = "I love semicolons; I hate semicolons"; "forget new line" = "forgot new line!";
__EOS__;
$re = <<<'__EOS__'
/
(?<key> 'w++ | " (?: [^"'']++ | '' . )*+ " )
's*+ = 's*+
(?<val> " (?: [^"'']++ | '' . )*+ " )
's*+ ;
/x
__EOS__;
preg_match_all($re, $str, $matches);
var_dump($matches);
preg_match_all:
$str = <<< EOF
STRING1 = "hello";
"good = bye" = "good1 = bye1";
NAME = "Your name is '"%@'"";
"semicolon;confusion" = "I love semicolons; I hate semicolons"; "forget new line" = "forgot new line!";
EOF;
if (preg_match_all('~(?<key>.+?)'s+='s+(?=(?:(?:[^"]*"){2})*[^"]*$)(?<val>.+?)'s*(?<=");~', $str, $arr))
print_r($arr);
然后使用数组$key和$val来获取您的值。