php柱状图生成类代码
这是一段完美的php柱状图生成类代码,可以生成漂亮实用的柱状图,代码如下:
<?php
function createimage($data, $twidth, $tspace, $height) {
$dataname = array();
$datavalue = array();
$i = 0;
$j = 0;
$k = 0;
$num = sizeof($data);
foreach ($data as $key => $val) {
$dataname[] = $key;
$datavalue[] = $val;
}
$maxnum = max($data);
$width = ($twidth + $tspace) * $num + 4; //image's width
$im = imagecreate($width + 40, $height + 20);
$linecolor = imagecolorallocate($im, 12, 12, 12);
$bgcolor = imagecolorallocate($im, 235, 233, 233);
$tcolor = imagecolorallocate($im, 123, 200, 56);
imagefill($im, 0, 0, $bgcolor);
imageline($im, 30, 0, 30, $height - 2, $linecolor);
imageline($im, 30, $height - 2, $width + 30 - 2, $height - 2, $linecolor);
while ($i < $num) {
imagefilledrectangle($im, $i * ($tspace + $twidth) + 40, $height - $datavalue[$i], $i * ($tspace + $twidth) + 40 + $twidth, $height - 3, $tcolor);
imagestringup($im, 4, $i * ($tspace + $twidth) + $twidth / 2 + 30, $height - 10, $dataname[$i] . "(" . $datavalue[$i] . ")", $linecolor);
$i++;
}
while ($j <= (500 / 10)) {
imagestringup($im, 4, 2, $height - $j * 10 + 10, $j * 10, $linecolor);
$j = $j + 10;
}
while ($k <= (500 / 10)) {
if ($k != 0) imageline($im, 28, $height - $k * 10, 32, $height - $k * 10, $linecolor);
$k = $k + 10;
}
imagepng($im);
}
?>调用方法, 代码如下:
header("content-type:image/png");
$data = array(
"yahoo" => 120,
"google" => 260,
"microsoft" => 320,
"ibm" => 290,
"sun system" => 150,
"inter" => 260
);
createimage($data, 38, 25, 460);
永久地址:http://www.phprm.com/tuxiang/fs4485.html
转载随意~请带上教程地址吧^^