mysql - PHP mysql_connect with array -

i'm creating website php. have information of mysql in file , use $cnf=file("cnf.txt"); information. use $ligacao=mysql_connect($cnf[0],$cnf[1],$cnf[2]);. when enter in website gives me warning in mysql_connect. if make echo of positions of array haves correct values.

can 1 tell me wrong?

the original code:

$cnf=file("cnf.txt"); $erro=0; $ligacao=mysql_connect($cnf[0],$cnf[1],$cnf[2]);

avoid using mysql_* functions deprecated.

the issue each value in $cnf array has trailing newline \n character on file.

at least, try:

$cnf = file("cnf.txt"); $erro = 0; $ligacao = mysql_connect(rtrim($cnf[0]),rtrim($cnf[1]),rtrim($cnf[2]));