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PHP分页不切割单词

May 25, 2016 pm 05:07 PM


<?php
function englishSubstr($str,$start,$end)
{
	if($start!=0)
	{
		if(substr($str,$start-1,1)!=" ")//如果被截的字母前面一个不是空格,表格这个字母并不是一个单词的开始
		{
			//那么我们就去除第一个不完整单词
			$i;
			for($i=1;$i<20;$i++)
			{
				if(substr($str,$start+$i,1)==" ") //向下循环,直到空格为止,然后高空格后的第一个字母为分页的第一个单词的开始
				{
					break;
				}
			}
			$start+=$i;
		}
	}
	if(substr($str,$end,1)!="")//如果结束处不是空格,表示一个单词还没有完
	{
		$i;
		for($i=1;$i<20;$i++)//往下循环,直到找到空格后退出,
		{
			if(substr($str,$start+$end+$i,1)==" ")
			{
				break;
			}
		}
		$end+=$i;
	}
	//获取分断单词
	return substr($str,$start,$end);
}
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