Basics of the Configuration File
Writing the Configuration File
Here is a function that will generate and write our configuration file:
<?php
function write_config()
{
// For every setting, add a global variable
global $db_user,$db_pass,$db_host,$db_name,$db_table;
global $base_path;
// Prepare settings
// Using single quotes is easier because you don't have to escape them. For every setting, add a line.
$settings = "<?php\n";
$settings .= "// Do not edit this file. Generated by admin script.\n";
$settings .= "// Database settings\n";
$settings .= "\$db_user = '$db_user';\n";
$settings .= "\$db_pass = '$db_pass';\n";
$settings .= "\$db_host = '$db_host';\n";
$settings .= "\$db_name = '$db_name';\n";
$settings .= "\$db_table = '$db_table';\n";
$settings .= "// Paths\n";
$settings .= "\$base_path = '$base_path';\n";
$settings .= "?>\n";
// Write out new initialization file
$fd = fopen( '/somepath/config.php', "w" )
or die ("Cannot create configuration file.");
fwrite( $fd, $settings );
fclose( $fd );
}
?>
Note: Because I made this a function, we need to include any variables we are going to write into the configuration as global variables or function parameters. I chose to make all variables used by the configuration file globals. They will likely be global to the whole application anyway (unless you're using classes).
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