我正在处理分页/分页代码，但需要一些帮助。
我已经达到了列出所有页码的点，可以点击。 image of paging
现在我试图让它只在当前页面之前和之后输出5页。
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$dbhost="localhost";
$dbname ="dbase";
$dbuser="root";
$dbpw ="password";
$dbport=;
$dbsocket="";
$dbconnect = mysqli_connect($dbhost,$dbuser,$dbpw,$dbname, $dbport, $dbsocket);
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error() . "<br /><br />";
}
$dbmatrix_Join_stmnt="
SELECT
`dbmatrix`.`RecID`,
`dbmatrix`.`AgencyID`,
`dbmatrix`.`DepartmentHead` AS `DeptHead`,
`dbmatrix`.`PrivateBoolean` AS `MtrxPrvt`,
`dbmatrix`.`DateEntered` AS `dbmDateEntr`,
`dbmatrix`.`DateRevised` AS `dbmDateRvsd`,
`agency`.`AgencyName`,
`agency`.`Website` AS `AgencySite`,
`agency`.`EmploymentWebAddress` AS `AgencyEmplSite`,
`agency`.`DateEntered` AS `AgencyDateEntr`,
`agency`.`DateRevised` AS `AgencyDateRvsd`,
`dbmatrix`.`GroupID`,
`groups`.`GroupName`,
`groups`.`DateEntered` AS `GrpDateEntr`,
`groups`.`DateRevised` AS `GrpDateRvsd`,
`dbmatrix`.`ContactID`,
`allcontacts`.`FirstName`,
`allcontacts`.`LastName`,
`allcontacts`.`Title`,
`allcontacts`.`Division`,
`allcontacts`.`Address1`,
`allcontacts`.`Address2`,
`allcontacts`.`POBox`,
`allcontacts`.`City`,
`allcontacts`.`State`,
`allcontacts`.`ZipCode`,
`allcontacts`.`Phone`,
`allcontacts`.`Fax`,
`allcontacts`.`Email`,
`allcontacts`.`Website`,
`allcontacts`.`EmploymentWebAddress` AS `ContactEmpSite`,
`allcontacts`.`GeneralInfo` AS `ContGenInfo`,
`allcontacts`.`DateEntered` AS `ContactDateEntr`,
`allcontacts`.`DateRevised` AS `ContactDateRvsd`
FROM `dbase`.`dbmatrix`
INNER JOIN dbase.agency
ON dbmatrix.AgencyID=agency.RecID
INNER JOIN dbase.groups
ON dbmatrix.GroupID=groups.RecID
INNER JOIN dbase.allcontacts
ON dbmatrix.ContactID=allcontacts.RecID
";
$dbmatrix_Join_qry="$dbmatrix_Join_stmnt
where `dbmatrix`.`PrivateBoolean`='0'
order by `agency`.`AgencyName` ASC
; ";
$queryNTD = mysqli_query($dbconnect,$dbmatrix_Join_qry);
/* Get total number of records */
$sql_qry_All_Directory="$dbmatrix_Join_stmnt where `dbmatrix`.`PrivateBoolean`='0' order by `dbmatrix`.`RecID` ASC ; ";
$query_All_Directory = mysqli_query($dbconnect,$sql_qry_All_Directory);
$count_All_Directory=mysqli_num_rows($query_All_Directory);
echo "<p class='SQLTableCount'><span class='searchTerm bld'>$count_All_Directory</span> Total in Directory</p>";
/*
echo "<p>$page_limit</p>";
echo "<p>$count_All_Directory</p>";
echo "<p>$dbmatrix_Join_qry</p>";
*/
$RecPerPage="10";
$TotalPgs=ceil($count_All_Directory/$RecPerPage);
echo "<p>$TotalPgs Total Pages</p>";
if(isset($_GET["page"])){
$page = intval($_GET["page"]); }
else { $page = 1; }
$calc = $RecPerPage * $page;
$start = $calc - $RecPerPage;
$query7832="$dbmatrix_Join_stmnt
where `dbmatrix`.`PrivateBoolean`='0'
order by `agency`.`AgencyName` ASC Limit $start, $RecPerPage ; ";
$result = mysqli_query($dbconnect,$query7832);
$rows = mysqli_num_rows($result);
if($rows){ $upage = 0; while($col = mysqli_fetch_assoc($result))
{
$RecID=$col['RecID'];
$AgencyID=$col['AgencyID'];
$GroupID=$col['GroupID'];
$ContactID=$col['ContactID'];
$DeptHead=$col['DeptHead'];
$MtrxPrvt=$col['MtrxPrvt'];
$dbmDateEntr=$col['dbmDateEntr'];
$dbmDateRvsd=$col['dbmDateRvsd'];
$AgencyName=$col['AgencyName'];
$AgencySite=$col['AgencySite'];
$AgencyEmplSite=$col['AgencyEmplSite'];
$AgencyDateEntr=$col['AgencyDateEntr'];
$AgencyDateRvsd=$col['AgencyDateRvsd'];
$GroupName=$col['GroupName'];
$GrpDateEntr=$col['GrpDateEntr'];
$GrpDateRvsd=$col['GrpDateRvsd'];
$FirstName=$col['FirstName'];
$LastName=$col['LastName'];
$Title=$col['Title'];
$Division=$col['Division'];
$Address1=$col['Address1'];
$Address2=$col['Address2'];
$POBox=$col['POBox'];
$City=$col['City'];
$State=$col['State'];
$ZipCode=$col['ZipCode'];
$Phone=$col['Phone'];
$Fax=$col['Fax'];
$Email=$col['Email'];
$Website=$col['Website'];
$ContactEmpSite=$col['ContactEmpSite'];
$GenInfo=$col['ContGenInfo'];
$ContactDateEntr=$col['ContactDateEntr'];
$ContactDateRvsd=$col['ContactDateRvsd'];
echo "<div style='display:inline-block; width:300px; border-bottom:1px solid #eeeeee; margin:10px 15px 10px; vertical-align:top; '>";
echo "<div class='bld ' style='font-weight:bold; '>$AgencyName</div>";
echo "<div class='___' style='___'>$Division</div>";
echo "<div class='___' style='color:#0033FF; '>$FirstName $LastName</div>";
echo "<div class='___' style='font-style: italic; '>$Title</div>";
echo "<div class='___' style='___'>$Address1</div>";
echo "<div class='___' style='___'>$Address2</div>";
echo "<div class='___' style='___'>$POBox</div>";
echo "<div class='___' style='___'><span style='color:#330066; '>$City</span>, $State $ZipCode</div>";
echo "<div class='___' style='___'>$Phone</div>";
echo "</div>";
};
};
echo "<br />";
echo "<br />";
if(isset($page)) {
$result = mysqli_query($dbconnect,"select Count(*) As Total FROM `dbase`.`dbmatrix` where `dbmatrix`.`PrivateBoolean`='0' ; ");
$rows = mysqli_num_rows($result);
if($rows) { $rs = mysqli_fetch_assoc($result);
$total = $rs["Total"];
}
$totalPages = ceil($total/$RecPerPage);
// Shows previous button
if($page <=1 ){ echo "<span id='page_links' style='font-weight:;'>Prev</span> | ";
}
else { $CurrPage = $page - 1;
echo "<span><a id='page_a_link' href='?page=$CurrPage'>< Prev</a> | </span> ";
}
for ($upage=1; $upage <= $totalPages; $upage++)
{if($upage<>$page) { echo "<span> | <a id='page_a_link' href='?page=$upage'>$upage</a></span>"; }
else { echo " | <span id='page_links' style='font-weight: bold;'>$upage</span>";
}
}
/*
*/
// shows next button
if($page == $totalPages ) { echo "<span id='page_links' style='font-weight:;'> | Next ></span>"; }
else { $CurrPage = $page + 1; echo "<span> | <a id='page_a_link' href='?page=$CurrPage'>Next ></a></span>"; }
}
$CurrPage=$CurrPage-1;
echo "<div>Current Page: $CurrPage of $TotalPgs</div>";
echo "<br />";
echo "<br />";
echo "<br />";
echo "<br />";
真的希望得到一些帮助吗
提前谢谢！
答案 0 :(得分：0)
假设$ page是当前页码，请尝试更改：
for ($upage=1; $upage <= $totalPages; $upage++)
到
for ($upage=max(1,$page - 5); $upage <= min($totalPages, $page + 5); $upage++)