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Restrictions on the PHP functions file() and fopen()

When using the PHP functions files() and fopen() you need to specify the local path to the file instead of being a link.
For example, if you use fopen("","r");, your fopen() function might not work properly, because your account will not be able to access the file.
To resolve this problem you have two options:
1. If you use a paid hosting plan by enabling the outgoing HTTP connections for your account using the “How to establish a connection to remote scripts/servers, RSS feeds?
2. You need to replace the path to the file from to index.htm, thus making your function look like this: fopen("index.htm","r");