php检查测量试验上传图片的尺寸和幅度

2019-07-25 07:52栏目:编程学习

1.openflashchart是一种相比较实用的Logo展现插件,况且是开源的,网站

/*
array getimagesize ( string $filename [, array &$imageinfo ] )

2.FlashChart类

getimagesize()函数将规定别的给定的图像大小的文本,并赶回随着文件类型和冲天/宽度的文本字符串是在两个寻常化的HTML IMG标签和对应的HTTP内容类型所选取的尺寸。
The getimagesize() function will determine the size of any given image file and return the dimensions along with the file type and a height/width text string to be used inside a normal HTML I www.111cn.net MG tag and the correspondant HTTP content type

复制代码 代码如下:

和getimagesize()也足以回去一些imageinfo参数的越来越多新闻。

FlashChart Class Code

注意:请留神,少年警讯和JP2是有分裂位深度组件的力量。在这种情状下,为“比特”的价值是参天的位深度的费力。其它,JP2上的JPEG文件或许富含七个3000codestreams。在这种情景下,和getimagesize()再次回到第一个码流的市场股票总值是在文件的根接触。

class FlashChart
{
private $id;
private $height;
private $width;
private $path;
function __construct($path="",$width=300,$height=500,$id="myChart")
{
global $flash_chart;
$this->id=$id;
$this->height=$height;
$this->width=$width;
$this->path=$path;
if(!$flash_chart)
{
echo '<script type="text/javascript" src="'.$path.'js/json/json2.js"></script>';
echo '<script type="text/javascript" src="'.$path.'js/swfobject.js"></script>';
echo '<script type="text/javascript" src="'.$path.'js/jquery-1.4.4.min.js"></script>';
$flash_chart=true;
}
}

注:有关材质搜索Logo从高耸入云比特率图标。
*/

function __destruct()
{
unset($this->id,$this->height,$this->width,$this->path);
}
function setID($id)
{
$this->id=$id;
}
function setChart($file,$info)
{
$tp=new TemplateData($file);
echo '<script type="text/javascript">';
echo "data_{$this->id}=".$tp->changeInfo($info).';';
echo "function ofc_get_dataOf{$this->id}(){return JSON.stringify(data_{$this->id});}";
echo "swfobject.embedSWF('".$this->path."/open-flash-chart.swf', '$this->id', '$this->width','$this->height','9.0.0','expressInstall.swf',{'get-data':'ofc_get_dataOf{$this->id}'} )";
echo '</script>';
}
}

list($width, $height) = getimagesize($image);
$new_dimensions = resize_dimensions(300,400,$width,$height);

3,TemplateData类

// Calculates restricted dimensions with a maximum of $goal_width by $goal_height
function resize_dimensions($goal_width,$goal_height,$width,$height) {
    $return = array('width' => $width, 'height' => $height);
   
    // If the ratio > goal ratio and the width > goal width resize down to goal width
    if ($width/$height > $goal_width/$goal_height && $width > $goal_width) {
        $return['width'] = $goal_width;
        $return['height'] = $goal_width/$width * $height;
    }
    // Otherwise, if the height > goal, resize down to goal height
    else if ($height > $goal_height) {
        $return['width'] = $goal_height/$height * $width;
        $return['height'] = $goal_height;
    }
   
    return $return;
}

把一个简易的图标的配置从曾经写好的txt文本里抽取来加载所用的类 :比如

/*
上面的函数大家正是采纳

复制代码 代码如下:

php 有个图片GD库getimagesize()函数。
有个函数是获得图片的主干音讯。
getimagesize()
$img=getimagesize('图片源');
宽度为=$img[0];
高度为=$img[1];
格式为=$img[2];

{
"title":
{
"text":"(title)",
"style":"{color:#FF0000;font-size:24px;}"
},
"y_legend":{
"text": "iWebShop",
"style": "{color: #736AFF;font-size:16px;}"
},

一旦你要简单的话能够更简便易行如

"elements":[
{
"type": "line",
"colour": "#736AFF",
"text": "注册用户量(人)",
"width": 1,
"dot-style": {
"type":"solid-dot", "colour":"#a44a80", "dot-size": 3,
"tip":"#val#人<br>#x_label#" },
"on-show": {"type": "shrink-in", "cascade":1, "delay":0.5},
"values" : [(numbers)]
}
],

*/
$picpath = 'ww.111cn.net.gif';
$array = getimagesize($picpath);
print_r( $array );

"x_axis":{
"labels": {
"labels":[(dates)]
}
},

echo '图片宽度为'.$array[0];
echo '图片中度为'.$array[1];
echo '图片格式为'.$array[2];

"y_axis":{
"steps": (steps),
"max": (max)
}
}

方法四
  //renumber
  $my_image = array_values(getimagesize('test.jpg'));
  //use list on new array
  list($width, $height, $type, $attr) = $my_image;

那是类的从头到尾的经过:

  //view new array
  print_r($my_image);

复制代码 代码如下:

  //spit out content
  echo 'Attribute: '.$attr.'<br />';
  echo 'Width: '.$width.'<br />';

class TemplateData
{
public $substitution;
private $templateFile;
function __construct($filename)
{
$this->templateFile=@file_get_contents($filename) or die("not find templateFile");
}
function __destruct() {
unset ($this->templateFile,$this->substitution);
}
function setTemplateFile($tfile)
{
$this->templateFile=$tfile;
}
function getTemplateFile()
{
return $this->templateFile;
}
function replaceReal($matches)
{
extract($this->substitution, EXTR_OVERWRITE);
return isset($$matches[1])?$$matches[1]:$matches[1];
}
function changeInfo($subs)
{
$this->substitution=$subs;
return preg_replace_callback("(((w )))",array(&$this, 'replaceReal'),$this->getTemplateFile());
}

//那在那之中就能有图表的宽窄与高度了

}

//一再个施用getimagesize展现缩略图的代码
function show_thumbnail($file)
{
    $max = 200 // Max. thumbnail width and height

4,调用的代码

    $size = getimagesize($file);

复制代码 代码如下:

    if ( $size[0] <= $max && $size[1] <= $max )
    {
        $ret = '<img src="'.$file.'" '.$size[3].' border="0">';
    }
    else
    {
        $k = ( $size[0] >= $size[1] ) ? $size[0] / $max : $size[1] / $max;
        $ret = '<a href="javascript教程:;" onClick="window.open('image.php?img=';
        $ret .= $file.'','','width='.$size[0];
        $ret .= ',height='.$size[1].'')">';
        $ret .= '<img src="'.$file.'" width="'.floor($size[0]/$k).'" height="'.floor($size[1]/$k).'" border="0" alt="View full-size image"></a>';
    }

<!--//这里的myChat是呈现flash的地方,所以不可能为空,改造的话要在评释FlashChart类的时候定义,详细见FlashChart类-->
<div class='content_box'><div id="myChart"></div></div>

    return $ret;
}

<?php
include("flashchart.php");
include("templatedata.php");
$fc=new FlashChart('chart/',"100%",320);
$infos=array(
'numbers'=>"30000,10000,5000,6000000,700",
'dates'=>""字符串1","字符串2","字符串3","字符串4","字符串5"",
'steps'=>600000,
'max'=>6000000
);
$info=array("title"=>'用户注册计算','numbers'=>$infos['numbers'],'dates'=>$infos['dates'],'steps'=>$infos['steps'],'max'=>$infos['max']);
$fc->setChart("chart/templatechart/user-add.txt",$info);

5,还恐怕有贰个拍卖数量的函数,把询问出来的数据集调换到ofc用的数量

复制代码 代码如下:

/**
* @brief ofc数据管理
* @params 数据库查询出关于x,y轴的数据的数据集
* @note 后台
*/
/*
public function init_count($rs)
{

$numbers ='';
$dates = '';
$max = 0;
foreach($rs as $row)
{

$numbers .= $row['num'].',';//y轴数据
$dates .='"'.$row['month'].'",';//x轴数据
if($max<$row['num']) $max = $row['num'];
}
$steps=ceil($max/10);
$result= array(
'steps' => $steps,
'numbers' => strlen($numbers)>1 ? substr($numbers,0,-1):null,
'dates' => strlen($dates)>1 ? substr($dates,0,-1) : null,
'max' => $max $steps
);
return $result;
}

版权声明:本文由威尼斯人app发布于编程学习,转载请注明出处:php检查测量试验上传图片的尺寸和幅度