Php 这个随机字符串生成器有什么问题？
我编辑了一些我在网上找到的代码，用PHP生成了一个随机字符串，我将使用它作为IDPhp 这个随机字符串生成器有什么问题？,php,arrays,string,random,generator,Php,Arrays,String,Random,Generator,我编辑了一些我在网上找到的代码，用PHP生成了一个随机字符串，我将使用它作为ID <!DOCTYPE html> <html class="no-js"> <head> <meta charset="utf-8"> <title>ID Generator</title> <link rel="stylesheet" href="idgen.css"> </head> <b
<!DOCTYPE html>
<html class="no-js">
<head>
<meta charset="utf-8">
<title>ID Generator</title>
<link rel="stylesheet" href="idgen.css">
</head>
<body>
<?php
class randomPassword {
function __construct( $passType='alphaNumeric', $length=64, $rangeLength=9 ) {
$this->passType = $this->setPassType( $passType );
$this->setLength( $length );
$this->setRangeLength( $rangeLength );
}
function setRangeLength( $rangeLength ) {
$this->rangeLength=$rangeLength;
}
// set the length of the password
private function setLength( $length ) {
$this->length=$length;
}
// set the type of password
private function setPassType( $passType ) {
return $passType.'Chars';
}
// return an array of numbers
private function numericChars() {
return range( 0, $this->rangeLength );
}
// return an array of lowercase chars
private function lcAlphaChars() {
return range( 'a', 'z' );
}
//return an array of uppercase chars
private function ucAlphaChars() {
return range( 'A', 'Z' );
}
// return an array of all alpha chars
private function alphaChars() {
return array_merge( $this->lcAlphaChars(), $this->ucAlphaChars() );
}
// return an array of alphanumeric chars
private function alphaNumericChars() {
return array_merge( $this->alphaChars(), $this->numericChars() );
}
// return array of lowercase characters and numbers
private function lcAlphaNumericChars() {
return array_merge( $this->lcAlphaChars(), $this->numericChars() );
}
// return array of uppercase characters and numbers
private function ucAlphaNumericChars() {
return array_merge( $this->ucAlphaChars(), $this->numericChars() );
}
// return a string of chars
private function makeString() {
// set the function to call based on the password type
$funcName = $this->passType;
return implode( $this->$funcName() );
}
// shuffle the chars and return $length of chars
public function makePassword() {
return substr( str_shuffle( $this->makeString() ), 1, $this->length );
}
} // end class
?>
<h3>ID Generator</h3>
<h4>LC Alpha Numeric</h4>
<?php
for ($i=0;$i<5;$i++)
{
try
{
$obj = new randomPassword( 'lcAlphaNumeric', 32, 9 );
echo $obj->makePassword().'<br />';
}
catch( Exception $ex )
{
echo $ex->getMessage();
}
}
?>
</body>
</html>
ID生成器
ID生成器
字母数字
如果我再次尝试相同的操作，但这次将长度增加到64（以避免冲突），它只会生成长度为36的字符串（其最大值为，元素不会重复）。如何使其能够从阵列中选择任何内容？您可以使用
openssl$secret = bin2hex(openssl_random_pseudo_bytes($length * 2));
您可以使用
openssl$secret = bin2hex(openssl_random_pseudo_bytes($length * 2));
$obj=new randomPassword（'lcAlphaNumeric'，32，9）$obj=new randomPassword（'lcAlphaNumeric'，32，9）length*2length*2