PHP random character acquisition code _ PHP Tutorial-php Tutorial

PHP randomly obtains the character code .? Php gets random characters. This function is case sensitive. if not, add the strtolowerfunctiongenRandomString ($ len) {$ charsarray (a, B, c, d, e, f, g, h, // Obtain random characters. This function is case sensitive. if it is case insensitive, add the strtolower function.
Function genRandomString ($ len)
{
$ Chars = array (
"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", "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", "0", "1 ", "2 ",
"3", "4", "5", "6", "7", "8", "9"
);
$ CharsLen = count ($ chars)-1;
Shuffle ($ chars); // disrupt the array
$ Output = "";
For ($ I = 0; $ I <$ len; $ I ++)
{
$ Output. = $ chars [mt_rand (0, $ charsLen)]; // Obtain an array element
}
Return $ output;
}
$ Str = genRandomString (4 );
Echo $ str;
?>

Http://www.bkjia.com/PHPjc/371657.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/371657.htmlTechArticle? Php // obtain random characters this function is case-sensitive. if not, add the strtolower function genRandomString ($ len) {$ chars = array (a, B, c, d, e, f, g, h ,...