Implementation code for paging display of long articles in PHP_PHP tutorial

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/**
*Author: Wuniao heart
*Code to implement paging of long articles
*Principle:
*Use an array to record each page of the article (use p0, p1, p2... to do it manually mark), and then use the php function to operate this array to display the paginated article. For paging display, pass the ptag (same as the value of tag) value.
*PHP functions used:
*1. strlen("string") - Returns the length of the given string. - Returns the total number of bytes in the string.
*2, strpos("string","matching character") - Returns the numeric position of the first occurrence of needle in the haystack string. - Returns the position of the first matching character that appears in the string. Byte number.
*3, substr("string","start position","end position") - substr() returns the portion of string specified by the start and length parameters. - Returns the specified start and end positions in the string several characters.
*/
$sql = "select * from article where id = 41";//Define the sql statement and return the id of 41 Content
$result = mysql_query($sql);//Execute the sql statement and return the result set
$row = mysql_fetch_array($result);//Return from the record set in the form of an array
$content = $row['content'];//Assign the article to the variable $content
$articleCounts = strlen($content);//Return the total number of bytes of $content (article)
$isTrue = true; //Loop tag
$tag = 0;//Paging tag, array subscript
echo "Total number of bytes: ".$articleCounts."
";//Test information
// Find the tag "ptag" and assign its position (number of bytes) to the array array[]--------------------------- ---------------
while($isTrue){
$startAt = strpos($content,"p".$tag);//Get the word of the corresponding ptag Section number
if($startAt != false){ //If there is a tag (the return value is not false), record the position
$array[$tag++] = $startAt;
}else{ // If there is no mark, the array[0] is assigned a value'



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Welcome to communicate! The implementation code is as follows: Copy the code as follows: ?php include('include/config.php'); ??php /** *Author: Wuniao heart *Code to implement long article paging*Principle: *Use...