In PHP to generate a CAPTCHA image is quite simple, because in PHP for us to provide a graphics Gd.dll library, to enable the GD graphics library we just php.ini in the PHP-GD front; Method a $authnum = '; $ychar = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z&qu ...
The code is as follows://Get the current script URL function getcururl () {if (!empty ($_server["Request_uri"))) {$scriptName = $_server["Request_uri"]; Nowurl = $scriptName; else {$scriptName = $_s ...
Use PHP to develop applications, especially web applications, often need to generate a random password, such as user registration to generate a random password, the user also need to reset the password to generate a random password. Random password is a string of fixed-length string, where I collected several ways to generate a random string for your reference. Method 1: 1, in 33 - 126 to generate a random integer, such as 35, 2, 35 will be converted to the corresponding ASCII characters, such as 35 corresponding to # 3, repeat the above 1, 2 steps n times, connected ...
php tutorial email spam (phpmailer send qq mail) * @ author ray * @ since 2009-08-07 smtp mail account must be more, otherwise it will be qq server as spam. 2. Appropriate dormancy smtp.dat file format for smtp.163.com | sss@163.com | password smtp.sina.com | www@sina.com | password www.jzread.com program randomly selected a connection. ..
Record, after the backup <? Php $ host = 'www.google.com'; / / to ping the address, it can be IP $ port = '80'; / / to ping the port $ num = 3; function microtime_float () & nbs ...
mt_rand () Returns a random integer using the mersenne twister algorithm. Syntax mt_rand (min, max) Description mt_rand () returns a pseudo-random number from 0 to rand_max if the optional parameters min and max are not provided. For example, want a random number between 5 and 15 (including 5 and 15), using mt_rand (5, 15). * / echo mt_rand (); & nb ...
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