PHP多维数组和空值

在文本区域中，我按照一种模式粘贴随机数据：

Data1    Data2    Data3    Data4    Data5    Data6    Data7  
Data8    Data9    Data10    Data11    Data12    Data13    Data14

比如：

姓名[4*空格]姓氏[4*空格]地址[4*空格]国家[4*空格] 手机[4*空间]性别[4*空间]年龄[4*空间][断线]

在这个模式中，最后的数据（这里的年龄）可以是空的

所以我做了：

<form>
   <textarea rows="15" cols="100" name="query" id="pastedata">Paste datas there.</textarea>
   <p style="margin-left: 320px;"><input type="submit" name="submit"value="Submit" /></p>
</form>

<?php


if(isset($_GET['query'])) {
    $query = $_GET['query'];
$query = str_replace('    ', ',', $query);
$query = str_replace("\n", ',', $query);
$info = explode (',', $query);
$result = array_map('trim', $info);
print_r(array_chunk($result, 7));
}

将数据粘贴到那里。

似乎要用行分隔符分割每条记录。在这种情况下，直接这样做，而不是在将所有记录拆分之前将它们连接在一起

此外，您可以直接在4个空格上分解，而不是转换为逗号

foreach (preg_split("/((\r?\n)|(\r\n?))/", $_GET['query']) as $line) {
    $info = explode ('    ', $query);
    $result = array_map('trim', $info);
    print_r(array_chunk($result, 7));
}

确实有一些较短的方法可以做到这一点，但这里有一个扩展的示例


编辑-添加用“空数据”替换空值的逻辑

<?php
$output = [];

$input = "Data1    Data2    Data3    Data4    Data5    Data6    \nData8    Data9    Data10    Data11    Data12    Data13    Data14\n";

// The preg_split with PREG_SPLIT_NO_EMPTY will ignore any empty lines.
// http://php.net/manual/en/function.preg-split.php
foreach (preg_split('/\n/', $input, -1, PREG_SPLIT_NO_EMPTY) as $line) {

    $pieces = explode('    ', $line);

    // Loop over pieces and check if it is empty. If so, replace it with a string.
    $output[] = array_map(function($value) {
       return trim($value) === '' ? 'Empty Data' : $value;
    }, $pieces);
}

print_r($output);

您可以尝试以下方法：

$input = "Data1    Data2    Data3    Data4    Data5    Data6    Data7
Data8    Data9    Data10    Data11    Data12    Data13
Data15    Data16    Data17    Data18    Data19    Data20    Data21";

parserInputData(explode("\n", $input));

function parserInputData(array $lines){
    $output = [];

    foreach ($lines as $line) {
        $query  = $line;
        $query  = str_replace('    ', ',', $query);
        $query  = str_replace("\n", ',', $query);
        $info   = explode (',', $query);
        $result = array_map('trim', $info);
        $columnsCount = count($result);

        if( $columnsCount < 7 ){
            $diff   = 7 - $columnsCount;
            $result = array_merge($result, array_fill($columnsCount-1, $diff, 'Empty data'));
        }

        $output[] = $result;
    }

    print_r($output);
}

你能给出一个你想要的结果的例子吗？只需在输入上应用trim<代码>$query=trim（$\u GET['query']）
Array
(
    [0] => Array
        (
            [0] => Data1
            [1] => Data2
            [2] => Data3
            [3] => Data4
            [4] => Data5
            [5] => Data6
            [6] => Data7
        )

    [1] => Array
        (
            [0] => Data8
            [1] => Data9
            [2] => Data10
            [3] => Data11
            [4] => Data12
            [5] => Data13
            [6] => Empty data
        )

    [2] => Array
        (
            [0] => Data15
            [1] => Data16
            [2] => Data17
            [3] => Data18
            [4] => Data19
            [5] => Data20
            [6] => Data21
        )

)

<?php

$_GET['query'] = 'Data1    Data2    Data3    Data4    Data5    Data6    Data7 
Data8    Data9    Data10    Data11    Data12    Data13    Data14';


if(isset($_GET['query'])) {
   $query = $_GET['query'];
   $query = explode(PHP_EOL, $query);
   foreach($query as &$q){
       $q = trim($q);
       $q = explode('    ', $q);
   }
var_dump($query);
}

array
  0 => 
    array
      0 => string 'Data1' (length=5)
      1 => string 'Data2' (length=5)
      2 => string 'Data3' (length=5)
      3 => string 'Data4' (length=5)
      4 => string 'Data5' (length=5)
      5 => string 'Data6' (length=5)
      6 => string 'Data7' (length=5)
  1 => &
    array
      0 => string 'Data8' (length=5)
      1 => string 'Data9' (length=5)
      2 => string 'Data10' (length=6)
      3 => string 'Data11' (length=6)
      4 => string 'Data12' (length=6)
      5 => string 'Data13' (length=6)
      6 => string 'Data14' (length=6)