convert uppercase letter to lowercase using php [closed] - php

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about programming within the scope defined in the help center.
Closed 8 years ago.
Improve this question
<?php
$filename = "your htpasswd file path goes here"; // your htpasswd file name - complete unix path - or relative to this script
$host=“host”;
$dbuser=“usert”;
$dbpswd=“pass";
$mysqldb="db_name";
$table="passwd_table";
mysql_connect("$host", "$dbuser", "$dbpswd");
mysql_select_db ("$mysqldb");
$query = mysql_query("SELECT name FROM $table");
while ($row = mysql_fetch_array($query)) {
$user = $row['name'];
$pass = $row['name'];
$encrypted = crypt($pass);
$record .= "$user:$encrypted\r\n";
}
file_put_contents($filename,$record);
?>
I am using this php to write a file for htpassword , some of my username/password has uppercase letters , i want to convert it to lowercase then encrypt password and write user/pass to file

Answer 1

try this
$lowercase=strtolower('Your input')
solution
mysql_connect("$host", "$dbuser", "$dbpswd");
mysql_select_db ("$mysqldb");
$query = mysql_query("SELECT name,pass FROM $table");
while ($row = mysql_fetch_array($query)) {
$user = strtolower($row['name']);
$pass = strtolower($row['pass']);
$encrypted = crypt($pass);
$record .= "$user:$encrypted\r\n";
}

Answer 2

Use strtolower function
Returns string with all alphabetic characters converted to lowercase.

Answer 3

<?php
echo strtolower("Hello WORLD.");
?>
OUTPUT : hello world.
Try this

Answer 4

I would add that better if to use multibyte functions if you are not 100% sure there will be only standard characters.
For example:
mb_internal_encoding("UTF-8");
...
$user = mb_strtolower($row['name']);
$pass = mb_strtolower($row['pass']);