我找到了function ShellFolder($source, $search1, $search2){$shellBefehl...
与egrep
的代码。到目前为止工作得很好。但是现在我遇到了问题,因为搜索到的文本文件通常包含相同的术语。现在我想将两个搜索术语相互链接,这两个术语必须在文本文件中找到。这是我的代码:
<?php
function ShellFolder($source, $search1, $search2){
$shellBefehl = "egrep -o -w -l -a --directories=recurse '$search1' '$search2' $source";
exec($shellBefehl, $var);
return $var;
}
//$source = 'grep.txt';
$source = './ordner/daten';
$search1 = $this->item->title;
$search2 = $extraField->value;
$var = ShellFolder($source, $search1, $search2);
$myResult = print_r($var, true);
$text = $myResult;
$text_ohne = substr($myResult, 19);
$insgesamt = $text_ohne;
$insgesamt_neu=substr($insgesamt,0,-3);
echo ($search1);
echo ($search2);
$lines = file("$insgesamt_neu");
foreach($lines as $line) {
echo($line);
}
有人可以帮忙吗?
答案 0 :(得分:1)
例如,可以通过-E
选项将多个模式传递给Grep。但Grep将搜索任何模式。
如果要使用逻辑AND加入搜索模式,则Grep不方便,因为它不支持逻辑AND。如果pattern1.*pattern2
应该在pattern1
之前,则可以使用pattern2
这样的模式模拟AND:
$patterns = ['pattern1', 'pattern2'];
$dir = escapeshellarg($dir);
$pattern = escapeshellarg(implode('.*', $patterns));
$command = "egrep -o -w -l -a -r $pattern $dir";
exec($command, $output, $exit_status);
或pattern1.*pattern2|pattern2.*pattern1
任何订单。但对于一般情况,模式不是最理想的。换句话说,Grep不适用于通用案例,您应该使用其他工具。
有portable way to search for multiple patterns using AWK:awk '/pattern1/ && /pattern2/ && ... ' file
。但是,AWK接受单个文件,您必须手动迭代目录并将命令应用于每个文件:
<?php
/**
* Searches for lines matching all regexp patterns.
*
* @param string $dir Path to directory with text files
* @param array $patterns AWK patterns without regexp markers ('/')
* @return array Files matching all patterns
* @throws InvalidArgumentException
*/
function grepDir($dir, array $patterns, callable $callback) {
if (!$patterns) {
throw new InvalidArgumentException("Invalid patterns");
}
// Build command as awk '/pattern1/ && /pattern2/ && ... path-to-file'
$awk_script = '/' . implode('/ && /', $patterns) . '/';
$awk_script = escapeshellarg($awk_script);
$command_format = "awk $awk_script %s";
try {
$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));
$it->rewind();
while ($it->valid()) {
if (!$it->isDot()) {
$file_path = $it->key();
$command = sprintf($command_format, $file_path);
$output = null;
exec($command, $output, $exit_status);
if ($exit_status) {
trigger_error("Command failed: $command");
continue;
}
if ($output) {
$callback($file_path, $output);
}
}
$it->next();
}
} catch (Exception $e) {
trigger_error($e->getMessage());
return false;
}
return true;
}
$dir = '.';
$patterns = [ '456', '123' ];
grepDir($dir, $patterns, function ($file_path, array $output) {
printf("File: %s\nLines:\n%s\n--------\n",
$file_path, implode(PHP_EOL, $output));
});
示例输出
File: ./file1
Lines:
123 sdfsf 456
456 & 123
--------
File: ./test/file1
Lines:
456123
上面的示例可以很容易地转换为纯PHP解决方案(无需调用shell命令)。您可以逐行读取文件,并根据应用程序的逻辑使用preg_match()
测试该行是否与模式匹配:
$patterns = ['456', '123'];
$file = 'file1'; // Replace with $it->key() in the example above
if (! $fp = fopen('file1', 'r')) {
throw new RuntimeException("Failed to open file $file");
}
while ($line = fgets($fp)) {
$matches = true;
foreach ($patterns as $pattern) {
// You might want to quote the pattern, if it isn't supposed to be
// interpreted as a regular expression:
// $pattern = preg_quote($pattern, '/');
if (!preg_match("/{$pattern}/", $line)) {
$matches = false;
break;
}
}
if ($matches) {
echo "Line $line matches all patterns\n";
}
}
fclose($fp);