Question

I’ve problematic data in some row of my talbe like following string

[data attr1='2300.48' attr1='1' attr1='1116.95' attr1='60.75' attr1='9.22' attr1='' attr1='0' attr1='3593.39' attr1='119.05' attr1='25.96' attr1='27.98' attr1='36.32']

[data attr1='2300.48' attr1='1' attr1='1116.95' attr1='60.75' attr1='9.22' attr1='' attr1='0' attr1='3593.39' attr1='119.05' attr1='25.96' attr1='27.98' attr1='36.32']

[data attr1='2300.48' attr1='1' attr1='1116.95' attr1='60.75' attr1='9.22' attr1='' attr1='0' attr1='3593.39' attr1='119.05' attr1='25.96' attr1='27.98' attr1='36.32']

[data attr1='2300.48' attr1='1' attr1='1116.95' attr1='60.75' attr1='9.22' attr1='' attr1='0' attr1='3593.39' attr1='119.05' attr1='25.96' attr1='27.98' attr1='36.32'] 

Now i want to replace them by only one same string like:

[data attr1='2300.48' attr1='1' attr1='1116.95' attr1='60.75' attr1='9.22' attr1='' attr1='0' attr1='3593.39' attr1='119.05' attr1='25.96' attr1='27.98' attr1='36.32']

Please keep in mind that the value of the attr is varying.

— update —

how its stored in database
the column name is called content and the value in this column is

the text of the article
 [data.... ]
 [data.... ]
 [data.... ]

the datatype of the content is longtext

Sorry i can’t make the proper structure of sql table.

Thanks in advance for your help.

Answer 1

Here is the script that made my work.

$link = mysqli_connect("SERVER", "root", "root");
    $db = mysqli_select_db($link, "test");
    $res = mysqli_query($link, "SELECT * FROM wp_posts WHERE post_content LIKE '%nutr-label servingsize%nutr-label servingsize%'");

    if($res){
        $i=1;
        while($row = mysqli_fetch_array($res)){
            $str1 = strrpos($row['post_content'],"[nutr-label servingsize='");
            $sub1 = substr($row['post_content'],$str1);
            $str2 = strrpos($row['post_content'],"']");

            $finalStr = substr($row['post_content'],$str1,$str2);
            $newPostContent = substr($row['post_content'], 0, strpos($row['post_content'],"[nutr-label servingsize='")).$finalStr;
            $up = mysqli_query($link,"UPDATE wp_posts SET post_content ='".addslashes($newPostContent)."' WHERE ID='".$row['ID']."'");
            $i++;
        }
    }else{
        echo mysqli_error();
    }