php7-compat

Wrapper functions around the deprecated mysql_* and ereg* functions for use in PHP 7

Usage

In php.ini, add the following line (adjust the path depending on where you put the compatibility library):

auto_prepend_file = "/usr/local/share/php7-compat/php7-compat.php"

Alternatively, use

include( '/usr/local/share/php7-compat/php7-compat.php' );

as required.

Notes

For use with large legacy codebases, where PHP needs to updated but rewriting the code is impractical. Includes wrappers for the most commonly used mysql_* functions, mapping them onto their closest mysqli_* counterpart. Also includes wrappers for the ereg* and split* functions, mapping them onto their preg_* equivalents.

Apache-licensed so you are free to use the code as you see fit, and we don't have to worry about software patents.

Use the code by cloning the repository, and then either via the auto_prepend_file option in php.ini (recommended), or loading it in individual files as required. The library can safely be loaded multiple times and in PHP 5 environments: it only generates the function definitions if they aren't already present.

Limitations:

1. Doesn't always work reliably with codebases that have connections open to multiple databases within the same file. This is a fundamental limitation, as most of the mysql_* functions didn't require a database link as an argument, whereas many of the newer mysqli_* functions do. We store the most recently used database connection in a global variable, and default to using that if the link variable was not passed into the mysql_* function call.
2. Not all functions have been redefined. Contributions welcome! Missing functions are:

• mysql_client_encoding
• mysql_create_db
• mysql_db_name
• mysql_fetch_lengths
• mysql_field_flags
• mysql_field_len
• mysql_field_seek
• mysql_field_table
• mysql_get_client_info
• mysql_get_host_info
• mysql_get_proto_info
• mysql_info
• mysql_list_processes
• mysql_list_tables
• mysql_stat
• mysql_tablename
• mysql_thread_id
• mysql_unbuffered_query