字数截止

Question

我有一张桌子，我想要限制可以显示的单词数量，在200个单词之后，如果可以的话......那会很棒，但那真是一个额外的好处。下面是收集从数据库中的内容的代码：

 <tbody> 
<?php 

     // table content: 

     $i = 0; 
     if (is_array($this->users) && count($this->users) > 0) { 
      foreach ($this->users as $userIdx => $user) { 
       $class = "sectiontableentry" . (1 + ($i % 2));  // evenodd class 

       if ($this->allow_profilelink) { 
        $style = "style=\"cursor:hand;cursor:pointer;\""; 
        $style .= " id=\"cbU".$i."\"" ; 
       } else { 
        $style = ""; 
       } 
       if ($user->banned) { 
        echo "\t\t<tr class=\"$class\"><td colspan=\"".$colsNbr."\" ><span class=\"error\" style=\"color:red;\">"._UE_BANNEDUSER." ("._UE_VISIBLE_ONLY_MODERATOR.") :</span></td></tr>\n"; 
       } 
       echo "\t\t<tr class=\"$class\" ".$style.">\n"; 

       foreach (array_keys($this->columns) as $colIdx) { 
        echo "\t\t\t<td valign=\"top\" class=\"cbUserListCol" . $colIdx . "\">" . $this->_getUserListCell($this->tableContent[$userIdx][$colIdx]) . "\t\t\t</td>\n"; 
       } 
       echo "\t\t</tr>\n"; 
       $i++; 
      } 
     } else { 
      echo "\t\t<tr class=\"sectiontableentry1\"><td colspan=\"".$colsNbr."\">"._UE_NO_USERS_IN_LIST."</td></tr>\n"; 
     } 
?> 
     </tbody> 

，我想限制字的量列是类= cbUserListCol。

干杯。

---

这里是更新的版本似乎仍然没有限制的话：

<?php 
function truncateWords($text, $maxLength = 200) 
{ 
    // explode the text into an array of words 
    $wordArray = explode(' ', $text); 

    // do we have too many? 
    if(sizeof($wordArray) > $maxLength) 
    { 
     // remove the unwanted words 
     $wordArray = array_slice($wordArray, 0, $maxlength); 

     // turn the word array back into a string and add our ... 
     return implode(' ', $wordArray) . '&hellip;'; 
    } 

    // if our array is under the limit, just send it straight back 
    return $text; 
} 
     // table content: 

     $i = 0; 
     if (is_array($this->users) && count($this->users) > 0) { 
      foreach ($this->users as $userIdx => $user) { 
       $class = "sectiontableentry" . (1 + ($i % 2));  // evenodd class 

       if ($this->allow_profilelink) { 
        $style = "style=\"cursor:hand;cursor:pointer;\""; 
        $style .= " id=\"cbU".$i."\"" ; 
       } else { 
        $style = ""; 
       } 
       if ($user->banned) { 
        echo "\t\t<tr class=\"$class\"><td colspan=\"".$colsNbr."\" ><span class=\"error\" style=\"color:red;\">"._UE_BANNEDUSER." ("._UE_VISIBLE_ONLY_MODERATOR.") :</span></td></tr>\n"; 
       } 
       echo "\t\t<tr class=\"$class\" ".$style.">\n"; 

       foreach (array_keys($this->columns) as $colIdx) { 
        echo "\t\t\t<td valign=\"top\" class=\"cbUserListCol" . $colIdx . "\">" . ($this->_getUserListCell($this->tableContent[$userIdx][$colIdx])). "\t\t\t</td>\n"; 

       } 
       echo "\t\t</tr>\n"; 
       $i++; 
      } 
     } else { 
      echo "\t\t<tr class=\"sectiontableentry1\"><td colspan=\"".$colsNbr."\">"._UE_NO_USERS_IN_LIST."</td></tr>\n"; 
     } 
?> 

Answer 1

function truncateWords($text, $maxLength = 200) 
{ 
    // explode the text into an array of words 
    $wordArray = explode(' ', $text); 

    // do we have too many? 
    if(sizeof($wordArray) > $maxLength) 
    { 
     // remove the unwanted words 
     $wordArray = array_slice($wordArray, 0, $maxLength); 

     // turn the word array back into a string and add our ... 
     return implode(' ', $wordArray) . '…'; 
    } 

    // if our array is under the limit, just send it straight back 
    return $text; 
} 

这是一个有点快速和肮脏的 - 它不会破坏由&分隔的单词例如 - 但你明白了。

Answer 2

http://php.net/manual/en/function.str-word-count.php可让您将字符串分成单词数组。只需使用它并将前200个元素内插回到字符串中即可......