PHP mobile phone number generation Image instances_php tutorial

PHP mobile phone number generation Image instance program. We have worked on a recruitment website before, so we need to make sure that we cannot collect the mobile phone numbers and email addresses of our customers, so we will use php to implement the mobile phone number read from the database. we have done a recruitment website before, so we need to make sure that we cannot collect the mobile phone number and email address of our customers, therefore, we will use php to generate an image directly from the mobile phone number and email address read from the database. in this way, we can only collect pictures and cannot recognize them, next I will introduce two instances.

PHP string processing-Survival Pictures of mobile phone numbers

The code is as follows:

/// Convert the phone number into an image // $ Str indicates the string to be displayed. $ rand indicates whether to enable the scrambling code. Function str_to_image ($ str, $ w = 130, $ h = 25, $ rand = true) { // Generate an 11-digit digital image Header ("Content-type: image/png"); // tell the browser that the following data is an image instead of text // Define the image width and height $ Nwidth = $ w; $ Nheight = $ h; // Srand (double) microtime () * 1000000); // obtain the value of one second in the current time to one second in the execution time. $ Randval = $ str; // 11 digits $ Im = @ imagecreate ($ nwidth, $ nheight) or die ("Can't initialize new GD image stream"); // create an image // Set the image color $ Background_color = imagecolorallocate ($ im, 255,255,255); // match the color $ Text_color = imagecolorallocate ($ im, 23, 14, 91 ); // Draw the image border Imagefilledrectangle ($ im, $ nwidth-1, $ nheight-1, $ background); // rectangular area coloring Imagerectangle ($ im, $ nwidth-1, $ nheight-1, $ background_color); // draw a rectangle Imagestring ($ im, 8, 10, 4, $ randval, $ text_color); // draw a horizontal string If ($ rand ){ // Add interference factors For ($ I = 0; I I <260; $ I ++) { $ Randcolor = imagecolorallocate ($ im, rand (0,255), rand (0,255), rand (0,255 )); Imagesetpixel ($ im, rand () % ($ nwidth-5), rand () % ($ nheight + 5), $ randcolor); // point } } // Imagestring ($ im, 3,5, 5, "A Simple Text String", $ text_color ); // Imageinterlace ($ im, 1 ); Imagepng ($ im); // Create a png image Imagedestroy ($ im); // End Chart type } $ Str = '000000 '; Echo str_to_image ($ str, $ w = 130, $ h = 25, $ rand = true)

Example 2

The code is as follows:

$ Id = $ _ GET [id]; Include ("admin/config. php "); $ SQL = "select * from user where id = $ id "; $ Data = mysql_fetch_array (mysql_query ($ SQL )); $ P = SBC_DBC ($ data [Phone], 1 ); Function get_str ($ str, $ strlen = 16 ){ $ Str = stripslashes ($ str ); For ($ I = 0; $ I <$ strlen; $ I ++) If (ord (substr ($ str, $ I, 1)> 0xa0) $ j ++; If ($ j % 2! = 0) $ strlen ++; $ Tmp_str = substr ($ str, 0, $ strlen ); Return $ tmp_str; } If ($ p <> ''){ // Generate a 5-digit digital image Header ("Content-type: image/png"); // tell the browser that the following data is an image instead of text // Define the image width and height $ Nwidth = 120; $ Nheight = 25; $ Im = @ imagecreate ($ nwidth, $ nheight) or die ("Can't initialize new GD image stream"); // create an image // Set the image color $ Background_color = imagecolorallocate ($ im, 255,255,255); // match the color $ Text_color = imagecolorallocate ($ im, 23, 14, 91 ); // Draw the image border Imagefilledrectangle ($ im, $ nwidth-1, $ nheight-1, $ background); // rectangular area coloring Imagerectangle ($ im, $ nwidth-1, $ nheight-1, $ background_color); // draw a rectangle // Srand (double) microtime () * 1000000); // obtain the value of one second in the current time to one second in the execution time. // $ Randval = rand (); $ Randval = $ p; // 5-digit Imagestring ($ im, 8, 10, 2, $ randval, $ text_color); // draw a horizontal string // Add interference factors // For ($ I = 0; $ I <478; $ I ++) //{ // $ Randcolor = imagecolorallocate ($ im, rand (0,255), rand (0,255), rand (0,255 )); // Imagesetpixel ($ im, rand () % 100, rand () % 30, $ randcolor); // point //} // Imagestring ($ im, 3,5, 5, "A Simple Text String", $ text_color ); // Imageinterlace ($ im, 1 ); Imagepng ($ im); // Create a png image Imagedestroy ($ im); // End Chart type } Else { Echo "the merchant has not entered the phone number "; } ?>

...