PHP reads and pages txt text files-PHP Tutorial-php.cn

PHP reads and pages txt text files

墨辰丷

Release： 2023-03-31 20:24:01

Original

2834 people have browsed it

This article mainly introduces the method of PHP reading txt text files and displaying them in pages. It involves the skills of PHP file operation. It has certain reference value. Friends in need can refer to it.

The examples in this article are described How to read txt text file in PHP and display it in pages.

The specific implementation method is as follows:

The code is as follows:

<?php
    session_start(); 
    if (empty($page)) {$page=1;}
    if (isset($_GET[&#39;page&#39;])==TRUE) {$page=$_GET[&#39;page&#39;]; }
?> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
<title>Read Result</title> 
<style type="text/css"> 
<!-- 
.STYLE1 {font-size: 12px} 
.STYLE2 {font-size: 18px} 
--> 
</style> 
</head> 
<body> 
<table width="100%"  bgcolor="#CCCCCC"> 
<tr> 
<td > 
<?php 
if($page){ 
$counter=file_get_contents("example.txt"); //读取txt文件内容到$counter
$length=strlen($counter); 
$page_count=ceil($length/5000); 
function msubstr($str,$start,$len){ 
    $strlength=$start+$len; 
    $tmpstr="";
    for($i=0;$i<$strlength;$i++) { 
    if(ord(substr($str,$i,1))==0x0a) { 
        $tmpstr.=&#39;<br />&#39;;
    }
    if(ord(substr($str,$i,1))>0xa0) { 
        $tmpstr.=substr($str,$i,2); 
        $i++; 
    }
    else{ 
        $tmpstr.=substr($str,$i,1); } 
    } 
    return $tmpstr; 
} 
//------------截取中文字符串---------
$c=msubstr($counter,0,($page-1)*5000); 
$c1=msubstr($counter,0,$page*5000); 
echo substr($c1,strlen($c),strlen($c1)-strlen($c)); 
}?> 
</td> 
</tr> 
</table> 
<table width="100%"  bgcolor="#cccccc"> 
<tr> 
<td width="42%" align="center" valign="middle"><span class="STYLE1"> <?php echo $page;?> / <?php echo $page_count;?> 页 </span></td> 
<td width="58%" height="28" align="left" valign="middle">
<span class="STYLE1">
<?php
echo "<a href=m.php?page=1>首页</a> ";  
if($page!=1){ 
    echo "<a href=m.php?page=".($page-1).">上一页</a> "; 
} 
if($page<$page_count){ 
    echo "<a href=m.php?page=".($page+1).">下一页</a> "; 
}
echo "<a href=m.php?page=".$page_count.">尾页</a>";  
?> 
</span> </td> 
</tr> 
</table> 
</body> 
</html>

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