<?php
header('connect-type:text/html; charset=utf-8');
include 'conn.php';
$sql = "select xy_id,count(1) as counts from stu_inf group by xy_id";
$r = $conn -> query($sql);
$rs = array();
while ($row = MySQLi_fetch_array($r)){
    $rs[] = $row['counts'];
}
$sql_xy = "select * from xy_inf group by xy_id";
$r_xy = $conn -> query($sql_xy);
$xy = array();
while ($row_xy = mysqli_fetch_array($r_xy)){
    $xy[] = $row_xy['stu_xy'];
}
require_once 'src/jpgraph.php';
require_once 'src/jpgraph_bar.php';
$graph = new Graph(600, 300);
$graph->SetScale('textlin');
$graph->SetShadow();
                                                                                                         
$graph->img->SetMargin(40, 30, 20, 40);
$barplot = new BarPlot($rs);
$graph->Add($barplot);
$barplot->value->Show();
$graph->title->Set(iconv("utf-8","gb2312","全校學(xué)生數(shù)量"));
$graph->xaxis->title->Set(iconv("utf-8","gb2312","學(xué)院"));
$graph->xaxis->SetTickLabels($xy);
$graph->yaxis->title->Set(iconv("utf-8","gb2312",'人數(shù)'));
$graph->title->SetFont(FF_SIMSUN, FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->Stroke();
?>

專注于為中小企業(yè)提供網(wǎng)站建設(shè)、網(wǎng)站設(shè)計(jì)服務(wù),電腦端+手機(jī)端+微信端的三站合一,更高效的管理,為中小企業(yè)根河免費(fèi)做網(wǎng)站提供優(yōu)質(zhì)的服務(wù)。我們立足成都，凝聚了一批互聯(lián)網(wǎng)行業(yè)人才，有力地推動了上千多家企業(yè)的穩(wěn)健成長，幫助中小企業(yè)通過網(wǎng)站建設(shè)實(shí)現(xiàn)規(guī)模擴(kuò)充和轉(zhuǎn)變。

數(shù)據(jù)庫連接：conn.php

<?php
define('DB_HOST', 'localhost');
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_DATABASE','db_student');
$conn = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD,DB_DATABASE) or die("連接數(shù)據(jù)庫
數(shù)據(jù)庫：
mysql> use db_student;
mysql> desc stu_inf;
+--------+-------------+------+-----+---------+----------------+
| Field  | Type        | Null | Key | Default | Extra          |
+--------+-------------+------+-----+---------+----------------+
| id     | smallint(6) | NO   | PRI | NULL    | auto_increment |
| stu_xh | varchar(8)  | NO   | UNI | NULL    |                |
| stu_xm | varchar(40) | NO   |     | NULL    |                |
| xb_id  | smallint(6) | NO   | MUL | NULL    |                |
| xy_id  | smallint(6) | NO   |     | NULL    |                |
| stu_bj | varchar(4)  | NO   |     | NULL    |                |
+--------+-------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)
mysql> desc xy_inf;
+--------+-------------+------+-----+---------+----------------+
| Field  | Type        | Null | Key | Default | Extra          |
+--------+-------------+------+-----+---------+----------------+
| xy_id  | smallint(6) | NO   | PRI | NULL    | auto_increment |
| stu_xy | varchar(40) | NO   |     | NULL    |                |
+--------+-------------+------+-----+---------+----------------+
2 rows in set (0.00 sec)
            

                當(dāng)前題目：PHP+jpgraph實(shí)現(xiàn)柱型圖表，但是橫坐標(biāo)顯示為框框，不知是何原因
                

                分享鏈接：http://aaarwkj.com/article24/pchhje.html
            
            

                成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供品牌網(wǎng)站設(shè)計(jì)、網(wǎng)站維護(hù)、網(wǎng)站改版、虛擬主機(jī)、服務(wù)器托管、網(wǎng)站排名            
            

                廣告
                
            
            

                聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請盡快告知，我們將會在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場，如需處理請聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來源：
                創(chuàng)新互聯(lián)