Question

我试图创建一个搜索功能来搜索txt文件中包含的数据中的名称。

我有这样的数据：

class PythonOperator(BaseOperator):
    template_fields = ('templates_dict', 'op_args', 'op_kwargs')
    ui_color = '#ffefeb'

    # since we won't mutate the arguments, we should just do the shallow copy
    # there are some cases we can't deepcopy the objects(e.g protobuf).
    shallow_copy_attrs = ('python_callable', 'op_kwargs',)

    @apply_defaults
    def __init__(
        self,
        python_callable,  # type: Callable
        op_args=None,  # type: Optional[Iterable]
        op_kwargs=None,  # type: Optional[Dict]
        provide_context=False,  # type: bool
        templates_dict=None,  # type: Optional[Dict]
        templates_exts=None,  # type: Optional[Iterable[str]]
        *args,
        **kwargs
    ):

我想到了将数据更改为如下数组的想法：

dimitri, 1998, php
nikolai, 1998, php
yuri, 1998, php
alyosha, 1998, php

然后更多地划分为多维

Array
(
    [0] => dimitri, 1998, php
    [1] => nikolai, 1998, php
    [2] => yuri, 1998, php
    [3] => alyosha, 1998, php
)

这样我就可以通过键搜索名称。现在我不知道该怎么办了。我尝试使用Array ( [0] => dimitri Array( [0] => 1998 [1]=> php [1] => nikolai Array( [0] => 1998 [1]=> php [2] => yuri Array( [0] => 1998 [1]=> php [3] => alyosha Array( [0] => 1998 [1]=> php )函数爆炸数组中的值，但是它不起作用，这又产生了另一个问题，数组仅显示一些字符。

尝试

foreach()

HTML

$array = array();
$split = explode('\n', file_get_contents($file));
foreach ($split as $content){
    $array = array_filter(array_map("trim", explode("\n", $content)));
    $array1 = array();
    $split2 = explode(", ", $array);
    foreach($array as $row){
        $array1[$row[1]][$row[2]][]=$row[0];
    }
}

关于我的搜索，我正在考虑使用帖子，如果在搜索输入中正确键入数据，则将显示数据。

Answer 1

以一个PHP示例为例，将显示多行匹配：

<?php
$file = 'somefile.txt';
$searchfor = 'name';

// the following line prevents the browser from parsing this as HTML.
header('Content-Type: text/plain');

// get the file contents, assuming the file to be readable (and exist)
$contents = file_get_contents($file);
// escape special characters in the query
$pattern = preg_quote($searchfor, '/');
// finalise the regular expression, matching the whole line
$pattern = "/^.*$pattern.*\$/m";
// search, and store all matching occurences in $matches
if(preg_match_all($pattern, $contents, $matches)){
   echo "Found matches:\n";
   echo implode("\n", $matches[0]);
}
else{
   echo "No matches found";
}

Answer 2

您可以尝试关注

/* read data from text file, line by line */
$arr = []; // file contents go into this array
$handle = fopen('test.txt', 'r');
if ($handle) {
    while (($line = fgets($handle)) !== false) {
        $arr[] = explode(',', $line);
    }
    fclose($handle);
} else {
    echo 'error occured';
}

/* echo the form */
$form = <<<HEREDOC
<form action="#" method="POST">
    <input name="search_function" type="text" placeholder="Search who you want">
    <input type="submit" name="search" value="Search">
</form>
HEREDOC;
echo $form;

/* the search logic */
$found = false;
$count = 0; // count # of hits
if(isset($_POST['search'])) {
    foreach($arr as $key => $value) {
        foreach ($value as $key => $value) {
            if ($value == $_POST['search_function']) {
                $count++;
                $found = true;
                break 2;
            }
        }
    }
}
/* result */
$message = ($found === true) ? "found " . $_POST['search_function'] . " (" . $count . ") occurrence." : 'nothing found.';
echo $message;

Answer 3

您的文件似乎是CSV格式（或者至少是其内容），因此请考虑以下代码：

$datas = array_map('str_getcsv', file($pathToYourFile));

它将文件转换成数组。

https://www.php.net/manual/fr/function.file.php https://www.php.net/manual/fr/function.str-getcsv.php

使用PHP在文件txt中搜索名称

尝试

HTML

3 个答案: