<?php
function generarContrasena($longitud){
    $caracteres="abcdefghijklmnopqrstuvwxyz1234567890_-.;,";
    $contrasena='';
      for($i=0;$i<$longitud;$i++){
          $indice=rand(0,strlen($caracteres)-1);
          $contrasena.=$caracteres[$indice];
}
          return $contrasena;
              }   
$longitud=10;
$nuevo=generarContrasena($longitud);
echo "Nueva contraseña: $nuevo";

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