function create_password($length=8,$use_upper=1,$use_lower=1,$use_number=1,$use_custom=""){
$upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$lower = "abcdefghijklmnopqrstuvwxyz";
$number = "0123456789";
if($use_upper){
$seed_length += 26;
$seed .= $upper;
}
if($use_lower){
$seed_length += 26;
$seed .= $lower;
}
if($use_number){
$seed_length += 10;
$seed .= $number;
}
if($use_custom){
$seed_length +=strlen($use_custom);
$seed .= $use_custom;
}
for($x=1;$x<=$length;$x++){
$password .= $seed{rand(0,$seed_length-1)};
}
return($password);
}
//USAGE
echo create_password(); // Returns for example a7YmTwG4
echo create_password(16); // Returns for example Z77OzzS3DgV3OxxP
echo create_password(8,0,0); // Returns for example 40714215
echo create_password(10,1,1,1,";,:.-_()"); // Returns for example or)ZA10kpX
fonte: www.sastgroup.com
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