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[2001-03-11 08:36 UTC] olivier at lx dot student dot wau dot nl
I wrote my own session handlers, for use with interbase. Logging is done to a file that is truncated by the open function, and then a line appended by each other session function.
When I start with the example session handler from the manual, everything works ok. Then I start adding interbase functions. Session reading works. BUT, when I add interbase functions to writing, that function is not called anymore (it doesn't write it's entry in the logfile anymore). The same for adding ibase_commit() or ibase_close() to the close function, it doesn't write it's log entry anymore.
I tested the queries, and they _do_ work.
A working write function:
function ibs_write($key, $val) {
global $ibs_local_key, $ibs_db_id;
$fd = fopen('/home/pkedu/olivier/nwuser/log.out', 'a');
$dbkey = addslashes($key.$ibs_local_key);
$val = addslashes($val);
$now = time();
$query = "update user_info set session_data='$val' where user_id = (select user_id from user_session where session_key='$dbkey')";
// $ret = ibase_query($ibs_db_id, $query);
fputs($fd, $query."\n");
fclose($fd);
}
This is the same function where it doesn't work anymore, only thje comment is removed, and now the query is not written to the logfile anymore:
function ibs_write($key, $val) {
global $ibs_local_key, $ibs_db_id;
$fd = fopen('/home/pkedu/olivier/nwuser/log.out', 'a');
$dbkey = addslashes($key.$ibs_local_key);
$val = addslashes($val);
$now = time();
$query = "update user_info set session_data='$val' where user_id = (select user_id from user_session where session_key='$dbkey')";
$ret = ibase_query($ibs_db_id, $query);
fputs($fd, $query."\n");
fclose($fd);
}
The system does not have any other problems with interbase or sessions, I tried normal and persistant database connections, PHP does not crash (no reports in the apache error_log). Apache is Apache/1.3.9 from Debian Potato. Please contact me for any missing information.
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On a different machine, the same code generates as segfault. PHP is a freshly compiled ( with --enable-debug) 4.0.4pl1, Apache is 1.3.9 from Debian Potato. The backtrace is: #0 0x40392fbb in _res_resultcodes () from /usr/lib/apache/1.3/libdav.so #1 0x4031974c in yy_state_buf () from /usr/lib/apache/1.3/libphp4.so #2 0x40228a87 in execute (op_array=0x80fbc40) at ./zend_execute.c:2283 #3 0x4022f5c5 in convert_to_double (op=0x80b76d0) at zend_operators.c:317 #4 0x4022ef57 in zend_string_to_double (number=0x80b76d0 "?\003", length=0) at zend_operators.c:75 #5 0x40277c10 in php_array_walk (target_hash=0x80ff784, userdata=0x2) at array.c:1013 #6 0x40278247 in _valid_var_name (varname=0x4032ab30 "\204\235\n\b\005") at array.c:1149 #7 0x4027470a in ps_files_cleanup_dir (dirname=0x4031974c "\f\030\022", maxlifetime=0) at mod_files.c:176 #8 0x40277169 in php_if_end (ht=1076991820, return_value=0x0, this_ptr=0x0, return_value_used=0) at array.c:750 #9 0x402771ac in php_if_prev (ht=1, return_value=0x6, this_ptr=0x0, return_value_used=1076086069) at array.c:762 #10 0x4023c573 in zend_hash_find (ht=0x80b9dd0, arKey=0x402f44a4 "zend_hash.c", nKeyLength=687, pData=0x4023ee01) at zend_hash.c:852 #11 0x4023ee77 in zend_if_strncmp (ht=1077076512, return_value=0x4023c528, this_ptr=0x809e3ec, return_value_used=1076074916) at zend_builtin_functions.c:261 #12 0x402399f5 in zend_load_extension (path=0x4031974c "\f\030\022") at zend_extensions.c:46 #13 0x4025090c in cfg_get_entry (name=0x0, name_length=0) at php_ini.c:253 #14 0x4024d7d7 in php_request_startup () at main.c:636 #15 0x8051bdc in ap_run_cleanup () #16 0x8050c54 in ap_clear_pool () #17 0x8050cb4 in ap_destroy_pool () #18 0x8050c40 in ap_clear_pool () #19 0x805c13f in ap_child_terminate () #20 0x805c66c in ap_child_terminate () #21 0x805c789 in ap_child_terminate () #22 0x805cc3b in ap_child_terminate () #23 0x805d2ed in main () #24 0x400c0a42 in __libc_start_main () from /lib/libc.so.6