插件10：文本简化

<?php // Plug-in 10: Shorten Text// This is an executable example with additional code supplied// To obtain just the plug-ins please click on the Download link$text = "http://rover.ebay.com/rover/1/711-53200-19255-0/1?type=3&campid=5336224516&toolid=10001&customid=tiny-hp&ext=unicycle&satitle=unicycle";echo "Before: <a href=\"$text\">$text</a><br /><br />";echo "After: <a href=\"$text\">" . PIPHP_ShortenText($text, 60, "/-/-/") . "</a>";function PIPHP_ShortenText($text, $size, $mark){   // Plug-in 10: Shorten Text   //   // This plug-in takes a string variable containing any   // text and then shortens it to the length supplied by   // removing text from the middle. The arguments required   // are:   //   //    $text: Text to be modified   //    $size: New size of the string   //    $mark: String to mark position of removed text   $len = strlen($text);   if ($size >= $len) return $text;   $a = substr($text, 0, $size / 2 -1);   $b = substr($text, $len - $size / 2 + 1, $size/ 2 -1);   return $a . $mark . $b;}?>

插件说明：

插件10接受一个字符串变量，它代表一个需要简化的长URL地址（或其他字符串），返回简化后的URL地址，它需要用到以下参数：

$text 字符串变量，包含需要处理的文本

$size 数值变量，表示新字符串的大小

$mark 字符串变量，包含一个字符序列，标志字符串删除部分。