Question

我有这种格式的字符串

{value=very big +$5},{value=super big +$10},{value=extra big +$15}

如何以这种格式将它们转换为2个数组？

例如：

$name=["very big","super big","extra big"];
$price=["5","10","15"];   // OR  $price=[5,10,15];

如果字符串格式采用更简单的格式，我可以使用 explode（）来实现。但是，这种格式太复杂了。谁知道怎么做？

Answer 1

将explode与',' ,'=' ,'+$'

一起使用

$string = "{value=very big +$5},{value=super big +$10},{value=extra big +$15}";
$temp_array = (explode(",",$string));
foreach($temp_array as $val)    
{
    $temp_array = (explode("=",$val));  
    $temp_string = $temp_array[1]; 
    $temp_string = str_replace("}","",$temp_string);
    $temp_array = (explode("+$",$temp_string));
    $name[] = $temp_array[0];
    $price[] = $temp_array[1];
}

<强> DEMO

Answer 2

您可以尝试下面的代码段建议。 Quick-Test: Here.

<?php

    $string     = '{value=very big +$5},{value=super big +$10},{value=extra big +$15}';
    $arrParts   = explode(',', $string);
    $name       = [];
    $price      = [];
    $result     = [];

    foreach($arrParts as $iKey=>$part){
        $block      = preg_replace(["#^\{.*?=#", "#\}$#"], "", $part);
        $segments   = preg_split("#\s#", $block);   //<== CREATE AN ARRAY WITH 3 COLUMNS

        list($val1, $val2, $val3)   = $segments;
        $namePart                   = $val1 . " {$val2}";
        $pricePart                  = preg_replace("#[\+\-\$]#", "",$val3);
        $name[]                     = $namePart;
        $price[]                    = $pricePart;

        // BONUS: JUST CREATE A 3RD ARRAY WITH NAMED-KEY
        $result[$namePart]          = $pricePart;
    }
    var_dump($name);
    //YIELDS::
    array (size=3)
      0 => string 'very big' (length=8)
      1 => string 'super big' (length=9)
      2 => string 'extra big' (length=9)

    var_dump($price);
    //YIELDS::
    array (size=3)
      0 => string '5' (length=1)
      1 => string '10' (length=2)
      2 => string '15' (length=2)

    var_dump($result);
    //YIELDS::
    array (size=3)
      'very big' => string '5' (length=1)
      'super big' => string '10' (length=2)
      'extra big' => string '15' (length=2)

Answer 3

你可以使用正则表达式，例如这应该有效：

preg_match_all('/value=([\w\s]+)\s\+/', $string, $matches)
preg_match_all('/\$([\d]+)\}/', $string, $matches)

PHP如何将复杂的Pattern String转换为2个Arrays？

3 个答案: