Question

我需要将csv文件打印成html或将数字数据放入数据库：
但我需要在特定位置开始循环并将其分解到另一个特定位置（正则表达式）因此，我只需要重新打印包含数字数据的行和来自它们的所有列以下是伪代码 - 无法正常工作：

<?php
$row = 1;
$handle = fopen("test.csv", "r");
while ($data = fgetcsv($handle, 1000, ","))
{
   if (preg_match('/[Morning]/', $data[0]) === 1 // start at this rwo plus two lines down )
    {
    $num = count($data);
    $row++;
      for ($c=0; $c < $num; $c++)
      {
            for ($c=0; $c < $num; $c++)
            {  
              echo $data[$c] . " ";
            }   
      if (preg_match('/[Total Cash:]/', $data[0]) === 1)
        { break; row -1 }            
      }
       echo "<br>";  
   }
}
fclose($handle); ?>

所以csv是这样的：

/--some lines--/

Date: 3/3/11, Morning, --blank line--- Customer No,Time,CheckNo,Total, 1234,12-45,01,20.00, 1236,1-00,03,30.00, 1240,2-00,06,30.00, --more numerical rows of data at variable length that I need to loop over-- 1500,4-00,07,22.00, ----,----,---,----, Total Cash, , , ,120.00,

/--some other lines--and it goes/

Lunch Time, ---similar like Morning above ---

任何关于如何正确地添加这个问题的信息都很感激，我现在可以做很多循环和正则表达式，但有了这个，我需要更多的时间和帮助。感谢。

Answer 1

$lines = file('test.csv'); //read file into an array, one entry per line

$active = false; //keep track of what rows to parse

//loop one line at a time
for ($i = 0; $i < count($lines); $i++) {
  $line = $lines[$i];

  if (strpos($line, 'Morning') !== false) { //start parsing on the next row
    $active = true;
    $i += 2; //skip the blank line and header
    continue;
  }
  if (strpos($line, '----,') !== false) { //stop parsing rows
    $active = false;
  }

  if ($active) { //if parsing enabled, split the line on commas and do something with the values
    $values = str_getcsv(trim($line));
    foreach ($values as $value) {
      echo $value . " "; //these are the numbers
    }
  }

}

Answer 2

$lines = file('test.csv');
$parsing = false;
foreach ($lines as $line)
{
    $parsing = ((strpos($line, 'Morning') !== false) || $parsing)
        && ((strpos($line, 'Total Cash') === false);

    if (!$parsing)
        continue;

    $values = strgetcsv($line);
    echo implode(' ', $values);
}

编辑：基本上，它与Dan Grossmans解决方案相同，但更短; - ）

Answer 3

$lines = file('test.csv');

// Skip the unwanted lines
// Means: Every line until the line containing "Morning,"
do {
    $line = array_shift($lines);
} while(trim($line) !== 'Morning,');
$lines = array_slice($lines, 2); // Mentioned something about "2 lines below" or such" ^^

// Do something with the remaining lines, until
// Line _begins_ with "Total Cash"
while(strncmp('Total Cash', trim($line = array_shift($lines)), 10) !== 0) {
    echo implode(' ', str_getcsv($line)) . PHP_EOL;
}

PHP循环在csv上 - 在Regex模式下的开始和结束循环

3 个答案: