| dbmopen() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| dbase_open() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| filepro() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| filepro_rowcount() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| filepro_retrieve() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| ifx_* | sql_safe_mode restrictions, (!= safe mode) | 
| ingres_* | sql_safe_mode restrictions, (!= safe mode) | 
| mysql_* | sql_safe_mode restrictions, (!= safe mode) | 
| pg_lo_import() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| posix_mkfifo() | Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| putenv() | Obeys the safe_mode_protected_env_vars and 
        safe_mode_allowed_env_vars ini-directives. See also the documentation
        on putenv() | 
| move_uploaded_file() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed.  | 
| chdir() | Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| dl() | This function is disabled in safe mode. | 
| backtick operator | This function is disabled in safe mode. | 
| shell_exec() (functional equivalent 
        of backticks) | This function is disabled in safe mode. | 
| exec() | You can only execute executables within the safe_mode_exec_dir.
        For practical reasons it's currently not allowed to have
        .. components in the path to the executable.
        escapeshellcmd() is executed on the argument of this
        function. | 
| system() | You can only execute executables within the safe_mode_exec_dir.
        For practical reasons it's currently not allowed to have
        .. components in the path to the executable.
        escapeshellcmd() is executed on the argument of this
        function. | 
| passthru() | You can only execute executables within the safe_mode_exec_dir.
        For practical reasons it's currently not allowed to have
        .. components in the path to the executable.
        escapeshellcmd() is executed on the argument of this
        function. | 
| popen() | You can only execute executables within the safe_mode_exec_dir.
        For practical reasons it's currently not allowed to have
        .. components in the path to the executable.
        escapeshellcmd() is executed on the argument of this
        function. | 
| fopen() | Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| mkdir() | Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| rmdir() | Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| rename() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| unlink() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| copy() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. (on 
        source and 
        target)  | 
| chgrp() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| chown() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. | 
| chmod() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. In addition, you cannot  
        set the SUID, SGID and sticky bits | 
| touch() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. | 
| symlink() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. (note: only the target is 
        checked) | 
| link() | Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. (note: only the target is 
        checked) | 
| apache_request_headers() | In safe mode, headers beginning with 'authorization' 
        (case-insensitive) will not be returned. | 
| header() | In safe mode, the uid of the script is added to the
        realm part of the
        WWW-Authenticate header if you set this
        header (used for HTTP Authentication). | 
| PHP_AUTH variables | 
         In safe mode, the variables PHP_AUTH_USER,
         PHP_AUTH_PW, and AUTH_TYPE
         are not available in $_SERVER. Regardless, you
         can still use REMOTE_USER for the USER.
         (note: only affected since PHP 4.3.0)
         | 
| 
         highlight_file(),
         show_source()
         | 
         Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. (note: only affected since PHP 4.2.1)
         | 
| 
         parse_ini_file()
         | 
         Checks whether the files or directories you are 
about to operate on have the same UID (owner) as the script that is being
executed. Checks whether the directory in which
you are about to operate has the same UID (owner) as the script that is being
executed. (note: only affected since PHP 4.2.1)
         | 
| 
         set_time_limit()
         | 
         Has no effect when PHP is running in safe mode.
         | 
| 
         max_execution_time
         | 
         Has no effect when PHP is running in safe mode.
         | 
| 
         mail()
         | 
         In safe mode, the fifth parameter is disabled. (note: only affected since PHP 4.2.3)
         | 
| Any function that uses
         php4/main/fopen_wrappers.c
         | ?? |