Today accidentally think of write verification code number plus Chinese characters, the following is the code easier to have nothing to say
Let's take a look at the effect chart first.
Isn't it good?
Header ("Content-type:image/png");//type of
Effect:
Tip: Save to a PHP file and then hit the browser to see the same picture as the image.
Copy Code code as follows:
$im =imagecreate (670,500);$white = Imagecolorallocate ($im,
The drawpieimg () function contains 8 parameters, $title the title of the pie chart, $dataArr the array of data to display, $LABELARR the array of labels for the corresponding data, and $COLORARR the array of drawing colors for the corresponding
/** * _code () is a validation code function * @access public * @param int $_width Indicates the length of the verification code * @param int $_height represents the height of the verification code * @param int $_rnd_ Code indicates the number of
PHP Chinese character Verification Code instance code
Header ("Content-type:image/png"); $str = " One is in the not big this is the main people on the ground for a labor to move domestic to me to he will do to the school subordinate on the annual
try {
BufferedImage bi = null;
if (Isurl = = True) {
BI = imageio.read (new URL (Infilename));
}
else {
BI = imageio.read (new File (Infilename));
}
int[] Rgbarray = new int[101 * 29];//The pixel value of the image file I tested is 101 wide and 29
Pie charts have always wanted to publish something. Recently just put PhP4 in the Php_gd.dll, can't wait to do some graphics program play. See a lot of PHP to do pie chart examples, looked at is 2 dimensions, so want to do a 3-dimensional. After the
Value that defines the angle of PI one pointDefine ("PII", m_pi/180); Creates a new image resource and defines its background as white, with a foreground color of black$im = Imagecreate (670,500);$white = Imagecolorallocate ($im, 0xFF, 0xFF,
In the investigation process, we need to generate a variety of graphs based on statistical data to graphically indicate the percentage of the survey. PHP In this respect is also the expectations, it can be loaded by loading the GD library to achieve
Source:
//+------------------------+//| Pie3dfun. php//Common Functions |//+------------------------+Define ("Angle_step", 5); Defines the angle step when drawing an elliptical arcfunction Draw_getdarkcolor ($img, $CLR)//$CLR the corresponding dark
Ob_clean ();Header (' content-type:image/png ');If you have a problem and need to find a bug, put the header last/*$str = "1\n2\n3\n";$im = Imagecreate (100,120);$white = Imagecolorallocate ($im, 0xff,0xff,0xff);Imagecolortransparent ($im, $white);
\ (^o^)/~Now online more and more inseparable from the verification code, do not know the small partners know that the use of PHP GD Library can generate verification code, Σ (⊙▽⊙ "a ...Let's start by introducing several functions that need to be
Purpose of Study:Block machine requests to ensure that the business is not disturbed by machine submission requests.Why to block:In General Service-side business, write requests consume much more than read requests .Technical points:1.
PHP image operation-generating image verification code and php image Verification Code
A simple verification code is actually a few characters output in the image, which can be achieved through the imagestring function.
However, in terms of
This article mainly introduces a Leaf Image drawing example generated by PHP, hoping to help some friends who use PHP for image programming. Effect:
Tip: save it to the PHP file and paste it in the browser to
This article describes how to use the imagecolorallocate () function to set the color for PHP image processing. This article provides two ways to set the color in decimal and hexadecimal notation, for more information about how to use PHP to
This article mainly introduces the PHP bar chart generation method, which can be used to generate a bar chart with a bar chart. it is suitable for some situations where bar charts like bar charts display reports and has some practical value, for
Php generates a pie chart. The code for copying a pie chart is as follows :? Php + ---------------------- + | pie3dfun. PHP public function | + ------------------------ + define (ANGLE_STEP, 3); defines the angle pie chart when an elliptical arc is
PHP learning notes user registration module user class and verification code class. Therefore, paste the code of the first chapter and reusable classes to facilitate future reference and supply to friends who need them. : User class, including
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