PHP is simple to implement the paging function of text files

PHP is simple to implement the paging function of text files

<! doctype>a{padding:20px; }    </style>PHP//Chinese character handlingfunctionM_SUBSTR ($str,$start,$length){    $str _length=$start+$length;//get total intercept length    $tmp _str= "";  for($i= 0;$i<$str _length;$i++){        if(Ord(substr($str,$i, 1)) = = 0x0a){            $tmp _str. = "<br>"; }        if(Ord(substr($str,$i, 1)) >0xa0){            $tmp _str.=substr($str,$i, 2); $i++; }Else{            $tmp _str.=substr($str,$i, 1); }    }    return $tmp _str;}//pass-through parameter processingif(isset($_get[' Page '])){    $page=$_get[' Page '];}Else{    $page= 1;}$counter=file_get_contents("Example.txt");$length=strlen($counter);$page _count=Ceil($length/400);$pre _str= M_substr ($counter, 0, ($page-1) *400);$now _str= M_substr ($counter, 0,$page*400);Echo substr($now _str,strlen($pre _str),strlen($now _str)-strlen($pre _str));Echo"<br><br>";EchoThe current page.$page." /".$page _count;Echo"<a href= ' index.php?page=1 ' >Index</a>";if($page>1){    Echo"<a href= ' index.php?page=". ($page-1). "' >Pre</a> ";}if($page<$page _count){    Echo"<a href=index.php?page=". ($page+1). " >Next</a> ";}Echo"<a href=index.php?page=$page _count>End</a> ";?></body>
PHP is simple to implement the paging function of text files