php将HTML表格每行每列转为数组实现采集表格数据的方法

<?php
function get_td_array($table) {
  $table = preg_replace("'<table[^>]*?>'si","",$table);
  $table = preg_replace("'<tr[^>]*?>'si","",$table);
  $table = preg_replace("'<td[^>]*?>'si","",$table);
  $table = str_replace("</tr>","{tr}",$table);
  $table = str_replace("</td>","{td}",$table);
  //去掉 HTML 标记 
  $table = preg_replace("'<[/!]*?[^<>]*?>'si","",$table);
  //去掉空白字符 
  $table = preg_replace("'([rn])[s]+'","",$table);
  $table = str_replace(" ","",$table);
  $table = str_replace(" ","",$table);
  $table = explode('{tr}', $table);
  array_pop($table);
  foreach ($table as $key=>$tr) {
    $td = explode('{td}', $tr);
    array_pop($td);
    $td_array[] = $td;
  }
  return $td_array;
}
?>