Question

从dat文件中查看我在php中的搜索，这是我目前的代码：

<?php   

if (isset($_POST["name"]))
{

    $file = 'order.dat';
    $searchfor = $_POST["name"];

// the following line prevents the browser from parsing this as HTML.


// 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, '/');
//$pattern = "/^$pattern/m"; // your string starts with $pattern (177)
$pattern = "/^$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";
}
}

?>

    <h3>Search  Order Details</h3>

    <form  method="post" action="search.php"  id="searchform">
      <input  type="text" name="name">
      <input  type="submit" name="submit" value="Search">
    </form>

order.dat文件包含： -

175|RC456456456|54156456177|177$

176|RC456456177|54156456177|177$

177|RC456456177|54156456465|129$

178|RC456456456|54156456177|177$

现在现在如果找到搜索然后它说找到匹配...就像我输入177给它 Found matches: 177|RC456456177|54156456465|129$

现在，如果我输入002，则表示找不到匹配项

如果搜索匹配，我想在此表格中显示： -

<table>
                    <tr>
                    <th>Order number </th>
                    <th>Tranasaction id</th>
                    <th>Date </th>
                    <th>Total Price</th>
                    </tr>

        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>


            </table>

Answer 1

您必须使用fopen或file_get_contents打开文件，然后在换行符explode或split上\n或\r\n （取决于操作系统和文件）。

然后，您可以循环遍历它们并再次explode该字符串，以查看第一个元素是否是您要查找的内容。像这样：

$resLines = explode("\n", $FileContents);
foreach ($resLines as $line) {
  $resLine = explode("|", $line);
  if ($resLine[0] == $Search) {
    echo "Found! $line";
  }
}

有关您的修改的更新

这将是这样的：

$resContents = file_get_contents("order.dat");
$resLines = explode("\n", $FileContents);
    foreach ($resLines as $line) {
      $resLine = explode("|", $line);
      if ($resLine[0] == $Search) {
        $aFound = $resLine; // setting our array with the found contents
      }
}
echo "
<table>
    <tr>
        <th>Order number </th>
        <th>Tranasaction id</th>
        <th>Date </th>
        <th>Total Price</th>
    </tr>

    <tr>
        <td>" . $aFound[0] . "</td>
        <td>" . $aFound[1] . "</td>
        <td>" . $aFound[2] . "</td>
        <td>" . $aFound[3] . "</td>
    </tr>


</table>";

如果搜索在php中匹配，则在表格中显示

1 个答案: