PHP str_replace使用通配符刮取内容？

Well maybe my question wasn't that good written. I had a table which I needed to scrape from a website. I needed the info in the table, but had to cleanup some parts as mentioned. The solution I finally made was this one and it works. It still has a little work to do with manual replacements but that is because of the stupid " they use for inch. ;-)

Solution:

   \\ find the table in the sourcecode
   foreach($techdata->find('table') as $table){

    \\ filter out the rows
    foreach($table->find('tr') as $row){

    \\ take the innertext using simplehtmldom
    $tech_specs = $row->innertext;

    \\ strip some 'garbage'
    $tech_specs = str_replace("  \t\t\t\t\t\t\t\t\t\t\t<td class=\"datatable__body__item\">","", $tech_specs);

    \\ find the first word of the string so I can use it    
    $spec1 = explode('</td>', $tech_specs)[0];

    \\ use the found string to strip down the rest of the table
    $tech_specs = str_replace("<td class=\"datatable__body__item\" data-title=\"" . $spec1 . "\">",":", $tech_specs);

    \\ manual correction because of the " used
    $tech_specs = str_replace("<td class=\"datatable__body__item\" data-title=\"tbv Montage benodigde 19\">",":", $tech_specs);

    \\ manual correction because of the " used
    $tech_specs = str_replace("<td class=\"datatable__body__item\" data-title=\"19\">",":", $tech_specs);

    \\ strip some 'garbage'
    $tech_specs = str_replace("\t\t\t\t\t\t\t\t\t\t","
", $tech_specs);
    $tech_specs = str_replace("</td>","", $tech_specs);
    $tech_specs = str_replace("  ","", $tech_specs);

    \\ put the clean row in an array ready for usage
    $specs[] = $tech_specs;
    }
  }

Assuming that the string looked like this:

$string = 'Producent:<td class="datatable__body__item" data-title="Producent">Example';

You could get the beginning and the end of the string with this:

preg_match('/^(\w+:).*\>(\w+)/', $string, $matches);

echo implode([$matches[1], $matches[2]]);

Which, in this case, will throw Producent:Example. So, then you could add this output to another variable/array you intend to use. OR, since you mentioned replacing:

$string = preg_replace('/^(\w+:).*\>(\w+)/', '$1$2', $string);

But then again, checking as it would probably come in a variable number of lines:

$string = 'Producent:<td class="datatable__body__item" data-title="Producent">Example
Groep:<td class="datatable__body__item" data-title="Produkt groep">Example1
Type:<td class="datatable__body__item" data-title="Produkt type">Example2';

$stringRows = explode(PHP_EOL, $string);

$pattern = '/^(\w+:).*\>(\w+)/';
$replacement = '$1$2';
foreach ($stringRows as &$stringRow) {
    $stringRow = preg_replace($pattern, $replacement, $stringRow);
}

$string = implode(PHP_EOL, $stringRows);

Which will then output the string like you expect.

Explaining my regex: the first group catches the first word until the two dots :, then another group to catch the last word. I had previously specified anchors for both ends, but when breaking each line this wouldn't work as expected, so I kept only the beginning.

^(\w+:) => the word in the beginning of the string until two dots appear
.*\>    => everything else until smaller symbol appears (escaped by slash)
(\w+)   => the word after the smaller than symbol 

Just use a wildcard:

$newstr = preg_replace('/<td class="datatable__body__item" data-title=".*?">/', '', $str);

.*? means match anything but don't be greedy