Question

我想获取一个字符串来查找URL，将它们存储在一个数组中并使用它们来构建一个客户输出。问题是我得到一个错误，我有一个字符串到数组转换。

注意第21行JPEG（数组）
上的数组到字符串转换

有些人可以帮助我，是否有其他方法可以获取存储在数组中的URL？

  function getURLSfromStringToImages($string) {
     $regex = '/https?\:\/\/[^" ]+/i';
     preg_match_all($regex, $string, $matches);
      //($matches[0]);

     $tmp      = '';
        $tmpArray = $matches;

    if ( is_array( $tmpArray ) ) {

        $size  = count( $tmpArray ); //array size by using count() function
        $index = 0;

        while ( $index < $size ) {
            $tmp .= '<anhang location="REMOTE" gruppe="BILD">' . "\n"
                    . '<format>JPEG</format>' . "\n"
                    . '<daten>' . "\n"
                    . '<pfad>' .  "($tmpArray[$index])" . '</pfad>' . "\n"
                    . '</daten>' . "\n"
                    . '</anhang>' . "\n \n";
            $index ++;
        }


    } 

    echo $tmp;

}

$urls = getURLSfromStringToImages('a:3:{i:0;a:9:{s:22:"real_estate_floor_name";s:7:"Karnten";s:23:"real_estate_floor_price";s:0:"";s:31:"real_estate_floor_price_postfix";s:0:"";s:22:"real_estate_floor_size";s:0:"";s:30:"real_estate_floor_size_postfix";s:0:"";s:26:"real_estate_floor_bedrooms";s:0:"";s:27:"real_estate_floor_bathrooms";s:0:"";s:29:"real_estate_floor_description";s:0:"";s:23:"real_estate_floor_image";a:2:{s:2:"id";s:4:"4243";s:3:"url";s:70:"https://www.immo-verteiler.de/wp-content/uploads/2018/06/grundriss.jpg";}}i:1;a:9:{s:22:"real_estate_floor_name";s:6:"sterer";s:23:"real_estate_floor_price";s:0:"";s:31:"real_estate_floor_price_postfix";s:0:"";s:22:"real_estate_floor_size";s:0:"";s:30:"real_estate_floor_size_postfix";s:0:"";s:26:"real_estate_floor_bedrooms";s:0:"";s:27:"real_estate_floor_bathrooms";s:0:"";s:29:"real_estate_floor_description";s:0:"";s:23:"real_estate_floor_image";a:2:{s:2:"id";s:4:"4211";s:3:"url";s:76:"https://www.immo-verteiler.de/wp-content/uploads/2018/06/Hotel-Goestling.jpg";}}i:2;a:9:{s:22:"real_estate_floor_name";s:13:"lkjölkjölkj";s:23:"real_estate_floor_price";s:0:"";s:31:"real_estate_floor_price_postfix";s:0:"";s:22:"real_estate_floor_size";s:0:"";s:30:"real_estate_floor_size_postfix";s:0:"";s:26:"real_estate_floor_bedrooms";s:0:"";s:27:"real_estate_floor_bathrooms";s:0:"";s:29:"real_estate_floor_description";s:0:"";s:23:"real_estate_floor_image";a:2:{s:2:"id";s:4:"3907";s:3:"url";s:66:"https://www.immo-verteiler.de/wp-content/uploads/2018/05/klein.jpg";}}}');

print_r($urls);

Answer 1

你需要两个循环

ms_uni = df['ms'].unique()  #calculate the unique ms values
new_df_dict = { "ma":[],  "SEM":[] } #later you will rename them

for un in range( len(ms_uni) ):
    cms = ms_uni[un]
    new_df_dict['ma'].append( cms )
    new_df_dict['SEM'].append( df[ df['ms']==cms ]['SEM c/s'].mean() ) #advise: change the column name in a more safe SEM-c_s

new_df = pd.DataFrame(new_df_dict) #end of the dirty work
new_df.rename(index=str, columns={'ma':"mass amu", "SEM": "SEM c/s(mean over all cycles)"} )

另外，我建议您使用heredoc语法：https://www.php-space.info/php/space/heredoc-syntax.php

Answer 2

匹配被获取到数组数组中。您只需获取存储在$tmpArray = $matches[0]; // not $tmpArray = $matches;。

中的完整匹配值

因此，请使用

$tmpArray[$index]

另外，只需使用"($tmpArray[$index])"代替{{1}}。

请参阅PHP demo。

错误数组到字符串JPG错误

2 个答案: