PHP - 使用文本字符串中的键创建数组

问题描述：

I have simple text string, it is looking like that:

30143*1,30144*2,30145*3,30146*5,30147*5

And i have to transform this text string to array with this structure:

Array ( [0] => Array ( [product] => 30143 [qty] => 1 ) [1] => Array ( [product] => 30144 [qty] => 2 ) [2] => Array ( [product] => 30145 [qty] => 3 ) [3] => Array ( [product] => 30146 [qty] => 4 ) [4] => Array ( [product] => 30147 [qty] => 5 ) )

Is it even possible and if so how?

I found this:

$myString = "9,admin@example.com,8";
$myArray = explode(',', $myString);
print_r($myArray);

But this is only creating the array with no keys and wtih example there is no way to get the qty key with *.

Thanks in advance!

我有简单的文本字符串，它看起来像这样： p>

  30143 * 1,30144 * 2,30145 * 3,30146 * 5,30147 * 5 
  code>  pre> 
 
 我必须将此文本字符串转换为数组 结构： p> 
 
 
  Array（[0] =＆gt; Array（[product] =＆gt; 30143 [qty] =＆gt; 1）[1] =＆gt;数组（[  product] =＆gt; 30144 [qty] =＆gt; 2）[2] =＆gt;数组（[product] =＆gt; 30145 [qty] =＆gt; 3）[3] =＆gt;数组（[product] =＆gt;  ; 30146 [数量] =＆gt; 4）[4] =＆gt;数组（[product] =＆gt; 30147 [数量] =＆gt; 5））
  code>  pre> 
 
 它是否可能，如果是这样的话？ p> 
 
 
我发现了这个： p> 
 
 
  $ myString =“9，admin @ example.com  ，8“; 
 $ myArray = explode（'，'，$ myString）; 
print_r（$ myArray）; 
  code>  pre> 
 
 但这只是创建数组 没有键，但是没有办法用 *  code>获取 qty  code>键。 p> 
 
 
提前致谢！ p  > 
  div>

答

Here you go. You need to iterate through all the 30143*1 items. array_map do this job for you.

function getPieces($val) {
    $pieces  = explode('*', $val);
    return ['product' => $pieces[0], 'qty' => $pieces[1]];
}

$str = '30143*1,30144*2,30145*3,30146*5,30147*5';
$result = array_map('getPieces', explode(',', $str));

var_dump($result);

OUTPUT:

array (size=5)
  0 => 
    array (size=2)
      'product' => string '30143' (length=5)
      'qty' => string '1' (length=1)
  1 => 
    array (size=2)
      'product' => string '30144' (length=5)
      'qty' => string '2' (length=1)
  2 => 
    array (size=2)
      'product' => string '30145' (length=5)
      'qty' => string '3' (length=1)
  3 => 
    array (size=2)
      'product' => string '30146' (length=5)
      'qty' => string '5' (length=1)
  4 => 
    array (size=2)
      'product' => string '30147' (length=5)
      'qty' => string '5' (length=1)

答

This could be one of the possible ways:

$string = '30143*1,30144*2,30145*3,30146*5,30147*5';

$products = explode(',',$string);
$result = array();
foreach ($products as $productAndQuantity) {
    $result[] = array_combine(array('product', 'qty'), explode('*', $productAndQuantity));
}

var_dump($result);

output:

array(5) {
  [0]=>
  array(2) {
    ["product"]=>
    string(5) "30143"
    ["qty"]=>
    string(1) "1"
  }
  [1]=>
  array(2) {
    ["product"]=>
    string(5) "30144"
    ["qty"]=>
    string(1) "2"
  }
  [2]=>
  array(2) {
    ["product"]=>
    string(5) "30145"
    ["qty"]=>
    string(1) "3"
  }
  [3]=>
  array(2) {
    ["product"]=>
    string(5) "30146"
    ["qty"]=>
    string(1) "5"
  }
  [4]=>
  array(2) {
    ["product"]=>
    string(5) "30147"
    ["qty"]=>
    string(1) "5"
  }
}

答

Hooray for regex solutions…

$str = '30143*1,30144*2,30145*3,30146*5,30147*5';

if (preg_match_all('/(?<product>[^*]+)\*(?<qty>[^,]+),?/', $str, $matches, PREG_SET_ORDER)) {
    $result = array_map(
        function ($match) { return array_intersect_key($match, array_flip(['product', 'qty'])); },
        $matches
    );
    print_r($result);
}

The preg_match_all call already mostly does what you want, $matches is already sort of the expected result, it just has some additional entires which the array_intersect_key gets rid of.

答

@deceze variant:

preg_match_all('~(?<product>\d+)\*(?<qty>\d+)~', $str, $result, PREG_SET_ORDER);
foreach($result as &$m) { unset($m[0], $m[1], $m[2]); }

print_r($result);

PHP - 使用文本字符串中的键创建数组

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