(gdb) bt full
#0  zend_do_fcall_common_helper_SPEC (execute_data=0xbfd98bec)
    at /tmp/php5.2-200802112130/Zend/zend_vm_execute.h:205
        class_name = <value optimized out>
        i = 135543550
        p = <value optimized out>
        arg_count = 1
        return_reference = 0 '\0'
        opline = (zend_op *) 0x82d32c8
        original_return_value = <value optimized out>
        current_scope = (zend_class_entry *) 0x0
        current_this = (zval *) 0x0
        should_change_scope = 0 '\0'
#1  0x0817fb48 in execute (op_array=0x82d3070) at /tmp/php5.2-200802112130/Zend/zend_vm_execute.h:92
        execute_data = {opline = 0x82d32c8, function_state = {function_symbol_table = 0x0, 
    function = 0x82a5f70, reserved = {0x5, 0x8142ab8, 0x8305c90, 0x0}}, fbc = 0x0, 
  op_array = 0x82d3070, object = 0x0, Ts = 0xbfd98bc0, CVs = 0xbfd98bb0, 
  original_in_execution = 0 '\0', symbol_table = 0x8280770, prev_execute_data = 0x0, 
  old_error_reporting = 0x0}
#2  0x081525b4 in zend_eval_string (
    str=0xbfd9a3d0 "mysql_connect(\"host\", \"user\", \"pass\", true);", retval_ptr=0x0, 
    string_name=0x825a72f "Command line code")
    at /tmp/php5.2-200802112130/Zend/zend_execute_API.c:1171
        local_retval_ptr = (zval *) 0x0
        original_return_value_ptr_ptr = (zval **) 0x0
        original_opline_ptr = (zend_op **) 0x0
        pv = {value = {lval = 137179192, dval = 9.3435590328563442e-313, str = {
      val = 0x82d3038 "mysql_connect(\"host\", \"user\", \"pass\", true);", len = 44}, 
    ht = 0x82d3038, obj = {handle = 137179192, handlers = 0x2c}}, refcount = 137387048, 
  type = 6 '\006', is_ref = 0 '\0'}
        new_op_array = (zend_op_array *) 0x82d3070
        original_active_op_array = (zend_op_array *) 0x0
        original_function_state_ptr = (zend_function_state *) 0x0
        original_handle_op_arrays = 1 '\001'
        retval = <value optimized out>
#3  0x0815270b in zend_eval_string_ex (
    str=0xbfd9a3d0 "mysql_connect(\"host\", \"user\", \"pass\", true);", retval_ptr=0x0, 
    string_name=0x825a72f "Command line code", handle_exceptions=1)
    at /tmp/php5.2-200802112130/Zend/zend_execute_API.c:1205
        result = <value optimized out>
#4  0x081e7051 in main (argc=3, argv=0xbfd98fd4) at /tmp/php5.2-200802112130/sapi/cli/php_cli.c:1179
        __bailout = {{__jmpbuf = {136753140, 75408, 1, -1076261064, 1939142852, -62543957}, 
    __mask_was_saved = 0, __saved_mask = {__val = {0, 3086574536, 3083337151, 3082050634, 0, 
        3086595369, 3081806704, 2, 3086647236, 3083279456, 3218705900, 3218705952, 3086575615, 0, 0, 
        0, 0, 3084512256, 245889, 0, 0, 3218705900, 3218706104, 4287062190, 12, 3083279456, 
        3083275704, 4287062190, 0, 0, 0, 1}}}}
        exit_status = 0
        c = <value optimized out>
        file_handle = {type = 2 '\002', filename = 0x825a706 "-", opened_path = 0x0, handle = {
    fd = -1210473440, fp = 0xb7d9a420, stream = {handle = 0xb7d9a420, reader = 0xb7d9ec38, 
      closer = 0x1, fteller = 0, interactive = 1}}, free_filename = 0 '\0'}
        behavior = 6
        reflection_what = 0x0
        orig_optind = 1
        orig_optarg = 0x0
        arg_free = 0xbfd9a3d0 "mysql_connect(\"host\", \"user\", \"pass\", true);"
        arg_excp = (char **) Cannot access memory at address 0x61