PHP practical code collection

PHP is currently the most widely used Web-based programming language that drives millions of websites, including some large websites such as Facebook. 21 practical and convenient PHP code excerpts are collected here, which will be helpful for every type of PHP developers. 1. reading random strings

This code creates a readable string that is closer to a word in the dictionary and is practical and password-verified.
The code is as follows:
/**************
* @ Length-length of random string (must be a multiple of 2)
**************/
Function readable_random_string ($ length = 6 ){
$ Conso = array ("B", "c", "d", "f", "g", "h", "j", "k ", "l ",
"M", "n", "p", "r", "s", "t", "v", "w", "x", "y ", "z ");
$ Vocal = array ("a", "e", "I", "o", "u ");
$ Password = "";
Srand (double) microtime () * 1000000 );
$ Max = $ length/2;
For ($ I = 1; $ I <= $ max; $ I ++)
{
$ Password. = $ conso [rand (0, 19)];
$ Password. = $ vocal [rand (0, 4)];
}
Return $ password;
}

2. Generate a random string

If you do not need readable strings, use this function instead to create a random string as your random password.
The code is as follows:
/*************
* @ L-length of random string
*/
Function generate_rand ($ l ){
$ C = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 ";
Srand (double) microtime () * 1000000 );
For ($ I = 0; $ I <$ l; $ I ++ ){
$ Rand. = $ c [rand () % strlen ($ c)];
}
Return $ rand;
}

3. encode the email address

This code can be used to encode any email address as an HTML character entity to prevent being collected by spam programs.
The code is as follows:
Function encode_email ($ email = 'info @ domain.com ', $ linkText = 'contact us', $ attrs = 'class = "emailencoder "')
{
// Remplazar aroba y puntos
$ Email = str_replace ('@', '@', $ email );
$ Email = str_replace ('.', '.', $ email );
$ Email = str_split ($ email, 5 );

$ LinkText = str_replace ('@', '@', $ linkText );
$ LinkText = str_replace ('.', '.', $ linkText );
$ LinkText = str_split ($ linkText, 5 );

$ Part1 = '$ part2 = 'ilto :';
$ Part3 = '"'. $ attrs. '> ';
$ Part4 = '';

$ Encoded ='