PHP 字符串操作

发布于 2024-08-14 12:18:43 字数 429 浏览 5 评论 0原文

我正在读取格式为

Phone#(tab)Text(换行符) 的文本文件（换行）

或者更具体地说，

4799999999  Hey! You owe us $576.53. Pay up to account no. 9760.00.12345, ID: 201561438.

4798888888  Hey! You owe us $199. Pay up to account no. 9760.05.12345, KID: 201565173.

4797777777  Hey! You owe us... and so on.

我想将其存储在 SQL 数据库中，因此我需要将其分成电话号码和文本。

关于如何在 PHP 中将字符串分成对有什么想法吗？我应该在保存到 SQL 之前将这些值存储在数组中，还是应该立即存储？

原文

I'm reading a textfile on the format

Phone#(tab)Text(line break)
(line break)

Or more specifically

4799999999  Hey! You owe us $576.53. Pay up to account no. 9760.00.12345, ID: 201561438.

4798888888  Hey! You owe us $199. Pay up to account no. 9760.05.12345, KID: 201565173.

4797777777  Hey! You owe us... and so on.

I want to store this in a SQL database, so I need to break this apart in phone numbers and text.

Any ideas on how to split the string into pairs in PHP? And should I store these values in a Array before saving to SQL, or should I just store it right away?

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作业与我同在 2024-08-21 12:18:43

逐行读取文件，在选项卡上拆分每一行，然后使用适合您的数据库平台的 SQL 将其放入数据库中。

您哪个部分遇到问题？

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毅然前行 2024-08-21 12:18:43

$data = file_get_contents ($file); // Assuming $file holds path to file
if ($data) {
    $lines = explode("\n\n", $data);
    foreach ($lines as $line) {
        list ($phone, $message) = explode("\t", $line, 2);
        // do whatever you need with it
    }
}

$data = file_get_contents ($file); // Assuming $file holds path to file
if ($data) {
    $lines = explode("\n\n", $data);
    foreach ($lines as $line) {
        list ($phone, $message) = explode("\t", $line, 2);
        // do whatever you need with it
    }
}

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动次打次papapa 2024-08-21 12:18:43

使用带有选项卡的 explode 函数每行上的 (\t) 分隔符。

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喵星人汪星人 2024-08-21 12:18:43

您可以使用正则表达式来分解字符串，然后使用 SQL 将它们输入到数据库中。

^([0-9]{10})(.*)

将返回电话号码作为第一个捕获组，并将剩余文本作为第二个捕获组。

You could use Regular Expressions to break up the strings and then input them into the database using SQL.

^([0-9]{10})(.*)

would bring back the Phone Number as the first captured group, and the remaining text as the second captured group.

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抱着落日 2024-08-21 12:18:43

假设文件不大，您可以使用将行读入数组中file() 并像这样迭代它们：

$lines = file($filename);

foreach($lines as $line) {
  $line_arr = explode("\t", $line, 2);

  if(!empty($line_arr)) {
    // $line_arr[0] will be the phone number and
    // $line_arr[1] will be the text; insert them into your database
    // however you please.
  }
}

Assuming the file isn't huge, you can just read the lines into an array with file() and iterate over them like so:

$lines = file($filename);

foreach($lines as $line) {
  $line_arr = explode("\t", $line, 2);

  if(!empty($line_arr)) {
    // $line_arr[0] will be the phone number and
    // $line_arr[1] will be the text; insert them into your database
    // however you please.
  }
}

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执笏见 2024-08-21 12:18:43

我认为您最好使用 strpos 函数，以防文本部分中有选项卡。

$lines = file( $filename );

foreach ( $lines as $line )
{
    $tab = strpos( $line, "\t" );
    $num = substr( $line, 0, $tab );
    $text = substr( $line, $tab );
}

将 file 函数和 foreach 替换为 fopen 和 fgets (查看示例）如果文件特别大。

I think you'd be better off using the strpos function, in case there are tabs in the text part.

$lines = file( $filename );

foreach ( $lines as $line )
{
    $tab = strpos( $line, "\t" );
    $num = substr( $line, 0, $tab );
    $text = substr( $line, $tab );
}

Replace the file function and foreach with fopen and fgets (see example) if the file is particularly large.

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