利用preg_replace搭配nodeValue删除多维数组中的空格或字符串的方法解析

[1]=>
  array(9) {
    [0]=>
    string(5) "Johor"
    [1]=>
    string(0) ""
    [2]=>
    string(10) "KotaTinggi"
    [3]=>
    string(3) "29*"
    [4]=>
    string(2) " "
    [5]=>
    string(2) " "
    [6]=>
    string(2) " "
    [7]=>
    string(2) " "
    [8]=>
    string(2) " "
  }
  

以下是我尝试转换的代码...

foreach ($table_rows as $row => $tr) { //获取table里的tr元素
    foreach ($tr->childNodes as $td) { //获取tr里的td元素然后把td的值赋予新的二维数组
        $data[$row][] = preg_replace('/\s+/', '', str_replace(' ','',$td->nodeValue));  
        //在这里去除空格都不行
        //$data的输出就是上面的数组
        
    }
}

我也尝试了下面这个代码来删除那连个空格,也是不行...

 

foreach ($table_rows as $row => $tr) {
    foreach ($tr->childNodes as $td) {
        $data[$row][] = preg_replace('/[\r\n\s]+/', '', trim($td->nodeValue, ""));
    }
}

后来发现是写法有误

在外国stackflow大神给的答案,同样遇到这种问题的可以参考

foreach ($table_rows as $row => $tr) {
        foreach ($tr->childNodes as $td) {
            $data[$row][] = preg_replace("/[^a-zA-Z0-9]/", "", $td->nodeValue);
        }
    }