在图片上加文字是论坛,博客,新闻网站上最喜欢用的功能,防止盗图。这里看看代码是如何实现的。 首先还是upload_image.php这个文件,注意这里的caption文本框中输入的内容最终会写到图片上面 ? php // 修改图片效果 $db = mysql_connect ('localhost','root
在图片上加文字是论坛,博客,新闻网站上最喜欢用的功能,防止盗图。这里看看代码是如何实现的。
首先还是upload_image.php这个文件,注意这里的caption文本框中输入的内容最终会写到图片上面
<span>php </span><span>//</span><span>修改图片效果</span> <span>$db</span> = <span>mysql_connect</span>('localhost','root','Ctrip07185419') or <span>die</span>('can not connect to database'<span>); </span><span>mysql_select_db</span>('moviesite',<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>//</span><span>上传文件的路径</span> <span>$dir</span> = 'D:\Serious\phpdev\test\images'<span>; </span><span>//</span><span>设置环境变量 //putenv('GDFONTPATH='.'C:\Windows\Fonts');</span> <span>$font</span> = "C:\Windows\Fonts\arial.ttf"<span>; </span><span>//</span><span>upload_image.php页面传递过来的参数,如果是上传图片</span> <span>if</span>(<span>$_POST</span>['submit'] == 'Upload'<span>) { </span><span>if</span>(<span>$_FILES</span>['uploadfile']['error'] !=<span> UPLOAD_ERR_OK) { </span><span>switch</span>(<span>$_FILES</span>['uploadfile']['error'<span>]) { </span><span>case</span> UPLOAD_ERR_INI_SIZE: <span>die</span>('The uploaded file exceeds the upload_max_filesize directive'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_FORM_SIZE: <span>die</span>('The upload file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_PARTIAL: <span>die</span>('The uploaded file was only partially uploaded'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_NO_FILE: <span>die</span>('No file was uploaded'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_NO_TMP_DIR: <span>die</span>('The server is missing a temporary folder'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_CANT_WRITE: <span>die</span>('The server fail to write the uploaded file to the disk'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_EXTENSION: <span>die</span>('The upload stopped by extension'<span>); </span><span>break</span><span>; } } </span><span>$image_caption</span> = <span>$_POST</span>['caption'<span>]; </span><span>$image_username</span> = <span>$_POST</span>['username'<span>]; </span><span>$image_date</span> = <span>date</span>('Y-m-d'<span>); </span><span>list</span>(<span>$width</span>,<span>$height</span>,<span>$type</span>,<span>$attr</span>) = <span>getimagesize</span>(<span>$_FILES</span>['uploadfile']['tmp_name'<span>]); </span><span>$error</span> = 'The file you upload is not a supported filetype'<span>; </span><span>switch</span>(<span>$type</span><span>) { </span><span>case</span> IMAGETYPE_GIF: <span>$image</span> = imagecreatefromgif(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>case</span> IMAGETYPE_JPEG: <span>$image</span> = imagecreatefromjpeg(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>case</span> IMAGETYPE_PNG: <span>$image</span> = imagecreatefrompng(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>default</span>: <span>break</span><span>; } </span><span>$query</span> = 'insert into images(image_caption,image_username,image_date) values("'.<span>$image_caption</span>.'" , "'.<span>$image_username</span>.'","'.<span>$image_date</span>.'")'<span>; </span><span>$result</span> = <span>mysql_query</span>(<span>$query</span>,<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>$last_id</span> = <span>mysql_insert_id</span><span>(); </span><span>//</span><span> $imagename = $last_id.'.jpg'; // imagejpeg($image,$dir.'/'.$imagename); // imagedestroy($image);</span> <span>$image_id</span> = <span>$last_id</span><span>; imagejpeg(</span><span>$image</span> , <span>$dir</span>.'/'.<span>$image_id</span>.'.jpg'<span>); imagedestroy(</span><span>$image</span><span>); } </span><span>else</span> <span>//</span><span>如果图片已经上传,则从数据库中取图片名字</span> <span>{ </span><span>$query</span> = 'select image_id,image_caption,image_username,image_date from images where image_id='.<span>$_POST</span>['id'<span>]; </span><span>$result</span> = <span>mysql_query</span>(<span>$query</span>,<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>extract</span>(<span>mysql_fetch_assoc</span>(<span>$result</span><span>)); </span><span>list</span>(<span>$width</span>,<span>$height</span>,<span>$type</span>,<span>$attr</span>) = <span>getimagesize</span>(<span>$dir</span>.'/'.<span>$image_id</span>.'.jpg'<span>); } </span><span>//</span><span>如果是保存图片</span> <span>if</span>(<span>$_POST</span>['submit'] == 'Save'<span>) { </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['id']) && <span>ctype_digit</span>(<span>$_POST</span>['id']) && <span>file_exists</span>(<span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg'<span>)) { </span><span>$image</span> = imagecreatefromjpeg(<span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg'<span>); } </span><span>else</span><span> { </span><span>die</span>('invalid image specified'<span>); } </span><span>$effect</span> = (<span>isset</span>(<span>$_POST</span>['effect'])) ? <span>$_POST</span>['effect'] : -1<span>; </span><span>switch</span>(<span>$effect</span><span>) { </span><span>case</span> IMG_FILTER_NEGATE:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_NEGATE); <span>//</span><span>将图像中所有颜色反转</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_GRAYSCALE:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_GRAYSCALE); <span>//</span><span>将图像转换为灰度的</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_EMBOSS:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_EMBOSS); <span>//</span><span>使图像浮雕化</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_GAUSSIAN_BLUR:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_GAUSSIAN_BLUR); <span>//</span><span>用高斯算法模糊图像</span> <span>break</span><span>; } </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['emb_caption'<span>])) { imagettftext(</span><span>$image</span> , 12 , 0 , 20 , 20 , 0 , <span>$font</span> , <span>$image_caption</span><span>); } imagejpeg(</span><span>$image</span> , <span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg' , 100<span>); </span>?> <title>Here is your pic!</title> <h1 id="Your-image-has-been-saved">Your image has been saved!</h1> <img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" id alt="php给图片加文字" >.jpg" alt="" /> <span>php } </span><span>else</span><span> { </span>?> <title>Here is your pic!</title> <h1 id="So-how-does-it-feel-to-be-famous">So how does it feel to be famous?</h1> <p>Here is the picture you just uploaded to your servers:</p> <!--<img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" alt="" style="max-width:90%" />--> <span>php </span><span>if</span>(<span>$_POST</span>['submit'] == 'Upload'<span>) { </span><span>$imagename</span> = 'images/'.<span>$image_id</span>.'.jpg'<span>; } </span><span>else</span><span> { </span><span>$imagename</span> = 'image_effect.php?id='.<span>$image_id</span>.'&e='.<span>$_POST</span>['effect'<span>]; </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['emb_caption'<span>])) { </span><span>$imagename</span> .= '&capt='.<span>urlencode</span>(<span>$image_caption</span><span>); } } </span>?> <img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" style="max-width:90%" alt="">
Image save as: | $image_id?> |
Height: | echo $height;?> |
Widht: | echo $width;?> |
Upload date: | echo $image_date;?> |
You may apply a special effect to your image from the list of option below. Note:saving an image with any of the filters applied can be undone
php } ?>注意这里有个问题,选择字体的时要加上绝对路径并且带上后缀.tff,否则的话是看不到图片的,下面的代码是image_effect.php
<span>php </span><span>//</span><span>修改图片效果</span> <span>$db</span> = <span>mysql_connect</span>('localhost','root','Ctrip07185419') or <span>die</span>('can not connect to database'<span>); </span><span>mysql_select_db</span>('moviesite',<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>//</span><span>上传文件的路径</span> <span>$dir</span> = 'D:\Serious\phpdev\test\images'<span>; </span><span>//</span><span>设置环境变量 //putenv('GDFONTPATH='.'C:\Windows\Fonts');</span> <span>$font</span> = "C:\Windows\Fonts\arial.ttf"<span>; </span><span>//</span><span>upload_image.php页面传递过来的参数,如果是上传图片</span> <span>if</span>(<span>$_POST</span>['submit'] == 'Upload'<span>) { </span><span>if</span>(<span>$_FILES</span>['uploadfile']['error'] !=<span> UPLOAD_ERR_OK) { </span><span>switch</span>(<span>$_FILES</span>['uploadfile']['error'<span>]) { </span><span>case</span> UPLOAD_ERR_INI_SIZE: <span>die</span>('The uploaded file exceeds the upload_max_filesize directive'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_FORM_SIZE: <span>die</span>('The upload file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_PARTIAL: <span>die</span>('The uploaded file was only partially uploaded'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_NO_FILE: <span>die</span>('No file was uploaded'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_NO_TMP_DIR: <span>die</span>('The server is missing a temporary folder'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_CANT_WRITE: <span>die</span>('The server fail to write the uploaded file to the disk'<span>); </span><span>break</span><span>; </span><span>case</span> UPLOAD_ERR_EXTENSION: <span>die</span>('The upload stopped by extension'<span>); </span><span>break</span><span>; } } </span><span>$image_caption</span> = <span>$_POST</span>['caption'<span>]; </span><span>$image_username</span> = <span>$_POST</span>['username'<span>]; </span><span>$image_date</span> = <span>date</span>('Y-m-d'<span>); </span><span>list</span>(<span>$width</span>,<span>$height</span>,<span>$type</span>,<span>$attr</span>) = <span>getimagesize</span>(<span>$_FILES</span>['uploadfile']['tmp_name'<span>]); </span><span>$error</span> = 'The file you upload is not a supported filetype'<span>; </span><span>switch</span>(<span>$type</span><span>) { </span><span>case</span> IMAGETYPE_GIF: <span>$image</span> = imagecreatefromgif(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>case</span> IMAGETYPE_JPEG: <span>$image</span> = imagecreatefromjpeg(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>case</span> IMAGETYPE_PNG: <span>$image</span> = imagecreatefrompng(<span>$_FILES</span>['uploadfile']['tmp_name']) or <span>die</span>(<span>$error</span><span>); </span><span>break</span><span>; </span><span>default</span>: <span>break</span><span>; } </span><span>$query</span> = 'insert into images(image_caption,image_username,image_date) values("'.<span>$image_caption</span>.'" , "'.<span>$image_username</span>.'","'.<span>$image_date</span>.'")'<span>; </span><span>$result</span> = <span>mysql_query</span>(<span>$query</span>,<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>$last_id</span> = <span>mysql_insert_id</span><span>(); </span><span>//</span><span> $imagename = $last_id.'.jpg'; // imagejpeg($image,$dir.'/'.$imagename); // imagedestroy($image);</span> <span>$image_id</span> = <span>$last_id</span><span>; imagejpeg(</span><span>$image</span> , <span>$dir</span>.'/'.<span>$image_id</span>.'.jpg'<span>); imagedestroy(</span><span>$image</span><span>); } </span><span>else</span> <span>//</span><span>如果图片已经上传,则从数据库中取图片名字</span> <span>{ </span><span>$query</span> = 'select image_id,image_caption,image_username,image_date from images where image_id='.<span>$_POST</span>['id'<span>]; </span><span>$result</span> = <span>mysql_query</span>(<span>$query</span>,<span>$db</span>) or <span>die</span>(<span>mysql_error</span>(<span>$db</span><span>)); </span><span>extract</span>(<span>mysql_fetch_assoc</span>(<span>$result</span><span>)); </span><span>list</span>(<span>$width</span>,<span>$height</span>,<span>$type</span>,<span>$attr</span>) = <span>getimagesize</span>(<span>$dir</span>.'/'.<span>$image_id</span>.'.jpg'<span>); } </span><span>//</span><span>如果是保存图片</span> <span>if</span>(<span>$_POST</span>['submit'] == 'Save'<span>) { </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['id']) && <span>ctype_digit</span>(<span>$_POST</span>['id']) && <span>file_exists</span>(<span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg'<span>)) { </span><span>$image</span> = imagecreatefromjpeg(<span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg'<span>); } </span><span>else</span><span> { </span><span>die</span>('invalid image specified'<span>); } </span><span>$effect</span> = (<span>isset</span>(<span>$_POST</span>['effect'])) ? <span>$_POST</span>['effect'] : -1<span>; </span><span>switch</span>(<span>$effect</span><span>) { </span><span>case</span> IMG_FILTER_NEGATE:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_NEGATE); <span>//</span><span>将图像中所有颜色反转</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_GRAYSCALE:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_GRAYSCALE); <span>//</span><span>将图像转换为灰度的</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_EMBOSS:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_EMBOSS); <span>//</span><span>使图像浮雕化</span> <span>break</span><span>; </span><span>case</span> IMG_FILTER_GAUSSIAN_BLUR:<span> imagefilter(</span><span>$image</span> , IMG_FILTER_GAUSSIAN_BLUR); <span>//</span><span>用高斯算法模糊图像</span> <span>break</span><span>; } </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['emb_caption'<span>])) { imagettftext(</span><span>$image</span> , 12 , 0 , 20 , 20 , 0 , <span>$font</span> , <span>$image_caption</span><span>); } imagejpeg(</span><span>$image</span> , <span>$dir</span>.'/'.<span>$_POST</span>['id'].'.jpg' , 100<span>); </span>?> <title>Here is your pic!</title> <h1 id="Your-image-has-been-saved">Your image has been saved!</h1> <img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" id alt="php给图片加文字" >.jpg" alt="" /> <span>php } </span><span>else</span><span> { </span>?> <title>Here is your pic!</title> <h1 id="So-how-does-it-feel-to-be-famous">So how does it feel to be famous?</h1> <p>Here is the picture you just uploaded to your servers:</p> <!--<img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" alt="" style="max-width:90%" />--> <span>php </span><span>if</span>(<span>$_POST</span>['submit'] == 'Upload'<span>) { </span><span>$imagename</span> = 'images/'.<span>$image_id</span>.'.jpg'<span>; } </span><span>else</span><span> { </span><span>$imagename</span> = 'image_effect.php?id='.<span>$image_id</span>.'&e='.<span>$_POST</span>['effect'<span>]; </span><span>if</span>(<span>isset</span>(<span>$_POST</span>['emb_caption'<span>])) { </span><span>$imagename</span> .= '&capt='.<span>urlencode</span>(<span>$image_caption</span><span>); } } </span>?> <img src="/static/imghwm/default1.png" data-src="/inc/test.jsp?url=http%3A%2F%2Fimages.cnitblog.com%2Fi%2F72678%2F201405%2F152205020151940.png&refer=http%3A%2F%2Fwww.cnblogs.com%2Ftylerdonet%2Fp%2F3731018.html" class="lazy" style="max-width:90%" alt="">
Image save as: | $image_id?> |
Height: | echo $height;?> |
Widht: | echo $width;?> |
Upload date: | echo $image_date;?> |
You may apply a special effect to your image from the list of option below. Note:saving an image with any of the filters applied can be undone
php } ?>这里如果我们写成下面这样
<span>putenv</span>('GDFONTPATH='.'C:\Windows\Fonts'<span>); </span><span>$font</span> = "arial";
是看不到效果的,这里顺便提一下,火狐是最佳的开发工具,怎么讲呢,看看下面的对比吧。
火狐的提示是这样的:
图片没有截完整提示是:The image “http://localhost:81/test/image_effect.php?id=31&e=-1&capt=you+are+big+bitch” cannot be displayed because it contains errors.
谷歌浏览器的显示如下:
一个未能正确显示的图片,什么信息都没有。
再来看看大IE的,如下:
也能看到错误信息,但是一大堆乱码啊!
所以说开发人员好帮手还是火狐。

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。


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SecLists
SecLists は、セキュリティ テスターの究極の相棒です。これは、セキュリティ評価中に頻繁に使用されるさまざまな種類のリストを 1 か所にまとめたものです。 SecLists は、セキュリティ テスターが必要とする可能性のあるすべてのリストを便利に提供することで、セキュリティ テストをより効率的かつ生産的にするのに役立ちます。リストの種類には、ユーザー名、パスワード、URL、ファジング ペイロード、機密データ パターン、Web シェルなどが含まれます。テスターはこのリポジトリを新しいテスト マシンにプルするだけで、必要なあらゆる種類のリストにアクセスできるようになります。

DVWA
Damn Vulnerable Web App (DVWA) は、非常に脆弱な PHP/MySQL Web アプリケーションです。その主な目的は、セキュリティ専門家が法的環境でスキルとツールをテストするのに役立ち、Web 開発者が Web アプリケーションを保護するプロセスをより深く理解できるようにし、教師/生徒が教室環境で Web アプリケーションを教え/学習できるようにすることです。安全。 DVWA の目標は、シンプルでわかりやすいインターフェイスを通じて、さまざまな難易度で最も一般的な Web 脆弱性のいくつかを実践することです。このソフトウェアは、

MinGW - Minimalist GNU for Windows
このプロジェクトは osdn.net/projects/mingw に移行中です。引き続きそこでフォローしていただけます。 MinGW: GNU Compiler Collection (GCC) のネイティブ Windows ポートであり、ネイティブ Windows アプリケーションを構築するための自由に配布可能なインポート ライブラリとヘッダー ファイルであり、C99 機能をサポートする MSVC ランタイムの拡張機能が含まれています。すべての MinGW ソフトウェアは 64 ビット Windows プラットフォームで実行できます。
