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//generates 13 character random unique alphanumeric id
echo uniqid();
//output - 5e6d873a4f597
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function generateRandomString($length = 25) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
//usage
$myRandomString = generateRandomString(5);
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function RandomString($length = 6) {
$original_string = array_merge(range(0,29), range('a','z'), range('A', 'Z'));
$original_string = implode("", $original_string);
return substr(str_shuffle($original_string), 0, $length);
}
echo RandomString(6);
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$random = Str::random(20); // the other anwsers on codegrepper gave me headache
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phpCopy<?php
$Random_str = uniqid();
echo "Random String:", $Random_str, "\n";
?>
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function RandomString($length = 10) {
return substr(str_shuffle(str_repeat($x='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', ceil($length/strlen($x)) )),1,$length);
}
echo RandomString();
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function rand_str() {
$characters = '0123456789-=+{}[]:;@#~.?/>,<|\!"£$%^&*()abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomstr = '';
for ($i = 0; $i < random_int(50, 100); $i++) {
$randomstr .= $characters[rand(0, strlen($characters) - 1)];
}
return $randomstr;
}
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function generateRandomString($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
Output the random string with the call below:
// Echo the random string.
// Optionally, you can give it a desired string length.
echo generateRandomString();
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function generateRandomString($digits) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randstring = '';
for ($i = 0; $i < $digits; $i++) {
$randstring .= $characters[rand(0, strlen($characters))];
}
return $randstring;
}
echo generateRandomString(24);