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pdo_stmt.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2015 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <[email protected]> |
| Marcus Boerger <[email protected]> |
| Sterling Hughes <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/* The PDO Statement Handle Class */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_var.h"
#include "php_pdo.h"
#include "php_pdo_driver.h"
#include "php_pdo_int.h"
#include "zend_exceptions.h"
#include "zend_interfaces.h"
#include "php_memory_streams.h"
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO(arginfo_pdostatement__void, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_execute, 0, 0, 0)
ZEND_ARG_INFO(0, bound_input_params) /* array */
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_fetch, 0, 0, 0)
ZEND_ARG_INFO(0, how)
ZEND_ARG_INFO(0, orientation)
ZEND_ARG_INFO(0, offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_fetchobject, 0, 0, 0)
ZEND_ARG_INFO(0, class_name)
ZEND_ARG_INFO(0, ctor_args) /* array */
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_fetchcolumn, 0, 0, 0)
ZEND_ARG_INFO(0, column_number)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_fetchall, 0, 0, 0)
ZEND_ARG_INFO(0, how)
ZEND_ARG_INFO(0, class_name)
ZEND_ARG_INFO(0, ctor_args) /* array */
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_bindvalue, 0, 0, 2)
ZEND_ARG_INFO(0, paramno)
ZEND_ARG_INFO(0, param)
ZEND_ARG_INFO(0, type)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_bindparam, 0, 0, 2)
ZEND_ARG_INFO(0, paramno)
ZEND_ARG_INFO(1, param)
ZEND_ARG_INFO(0, type)
ZEND_ARG_INFO(0, maxlen)
ZEND_ARG_INFO(0, driverdata)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_bindcolumn, 0, 0, 2)
ZEND_ARG_INFO(0, column)
ZEND_ARG_INFO(1, param)
ZEND_ARG_INFO(0, type)
ZEND_ARG_INFO(0, maxlen)
ZEND_ARG_INFO(0, driverdata)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_pdostatement_setattribute, 0)
ZEND_ARG_INFO(0, attribute)
ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_pdostatement_getattribute, 0)
ZEND_ARG_INFO(0, attribute)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_pdostatement_getcolumnmeta, 0)
ZEND_ARG_INFO(0, column)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pdostatement_setfetchmode, 0, 0, 1)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, params)
ZEND_END_ARG_INFO()
/* }}} */
#define PHP_STMT_GET_OBJ \
pdo_stmt_t *stmt = Z_PDO_STMT_P(getThis()); \
if (!stmt->dbh) { \
RETURN_FALSE; \
} \
static PHP_FUNCTION(dbstmt_constructor) /* {{{ */
{
php_error_docref(NULL, E_ERROR, "You should not create a PDOStatement manually");
}
/* }}} */
static inline int rewrite_name_to_position(pdo_stmt_t *stmt, struct pdo_bound_param_data *param) /* {{{ */
{
if (stmt->bound_param_map) {
/* rewriting :name to ? style.
* We need to fixup the parameter numbers on the parameters.
* If we find that a given named parameter has been used twice,
* we will raise an error, as we can't be sure that it is safe
* to bind multiple parameters onto the same zval in the underlying
* driver */
char *name;
int position = 0;
if (stmt->named_rewrite_template) {
/* this is not an error here */
return 1;
}
if (!param->name) {
/* do the reverse; map the parameter number to the name */
if ((name = zend_hash_index_find_ptr(stmt->bound_param_map, param->paramno)) != NULL) {
param->name = zend_string_init(name, strlen(name), 0);
return 1;
}
pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined");
return 0;
}
ZEND_HASH_FOREACH_PTR(stmt->bound_param_map, name) {
if (strncmp(name, param->name->val, param->name->len + 1)) {
position++;
continue;
}
if (param->paramno >= 0) {
pdo_raise_impl_error(stmt->dbh, stmt, "IM001", "PDO refuses to handle repeating the same :named parameter for multiple positions with this driver, as it might be unsafe to do so. Consider using a separate name for each parameter instead");
return -1;
}
param->paramno = position;
return 1;
} ZEND_HASH_FOREACH_END();
pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined");
return 0;
}
return 1;
}
/* }}} */
/* trigger callback hook for parameters */
static int dispatch_param_event(pdo_stmt_t *stmt, enum pdo_param_event event_type) /* {{{ */
{
int ret = 1, is_param = 1;
struct pdo_bound_param_data *param;
HashTable *ht;
if (!stmt->methods->param_hook) {
return 1;
}
ht = stmt->bound_params;
iterate:
if (ht) {
ZEND_HASH_FOREACH_PTR(ht, param) {
if (!stmt->methods->param_hook(stmt, param, event_type)) {
ret = 0;
break;
}
} ZEND_HASH_FOREACH_END();
}
if (ret && is_param) {
ht = stmt->bound_columns;
is_param = 0;
goto iterate;
}
return ret;
}
/* }}} */
int pdo_stmt_describe_columns(pdo_stmt_t *stmt) /* {{{ */
{
int col;
stmt->columns = ecalloc(stmt->column_count, sizeof(struct pdo_column_data));
for (col = 0; col < stmt->column_count; col++) {
if (!stmt->methods->describer(stmt, col)) {
return 0;
}
/* if we are applying case conversions on column names, do so now */
if (stmt->dbh->native_case != stmt->dbh->desired_case && stmt->dbh->desired_case != PDO_CASE_NATURAL) {
char *s = stmt->columns[col].name;
switch (stmt->dbh->desired_case) {
case PDO_CASE_UPPER:
while (*s != '\0') {
*s = toupper(*s);
s++;
}
break;
case PDO_CASE_LOWER:
while (*s != '\0') {
*s = tolower(*s);
s++;
}
break;
default:
;
}
}
#if 0
/* update the column index on named bound parameters */
if (stmt->bound_params) {
struct pdo_bound_param_data *param;
if (SUCCESS == zend_hash_find(stmt->bound_params, stmt->columns[col].name,
stmt->columns[col].namelen, (void**)¶m)) {
param->paramno = col;
}
}
#endif
if (stmt->bound_columns) {
struct pdo_bound_param_data *param;
if ((param = zend_hash_str_find_ptr(stmt->bound_columns,
stmt->columns[col].name, stmt->columns[col].namelen)) != NULL) {
param->paramno = col;
}
}
}
return 1;
}
/* }}} */
static void get_lazy_object(pdo_stmt_t *stmt, zval *return_value) /* {{{ */
{
if (Z_ISUNDEF(stmt->lazy_object_ref)) {
pdo_row_t *row = ecalloc(1, sizeof(pdo_row_t));
row->stmt = stmt;
zend_object_std_init(&row->std, pdo_row_ce);
ZVAL_OBJ(&stmt->lazy_object_ref, &row->std);
row->std.handlers = &pdo_row_object_handlers;
stmt->std.gc.refcount++;
}
ZVAL_COPY(return_value, &stmt->lazy_object_ref);
}
/* }}} */
static void param_dtor(zval *el) /* {{{ */
{
struct pdo_bound_param_data *param = (struct pdo_bound_param_data *)Z_PTR_P(el);
/* tell the driver that it is going away */
if (param->stmt->methods->param_hook) {
param->stmt->methods->param_hook(param->stmt, param, PDO_PARAM_EVT_FREE);
}
if (param->name) {
zend_string_release(param->name);
}
if (!Z_ISUNDEF(param->parameter)) {
zval_ptr_dtor(¶m->parameter);
ZVAL_UNDEF(¶m->parameter);
}
if (!Z_ISUNDEF(param->driver_params)) {
zval_ptr_dtor(¶m->driver_params);
}
efree(param);
}
/* }}} */
static int really_register_bound_param(struct pdo_bound_param_data *param, pdo_stmt_t *stmt, int is_param) /* {{{ */
{
HashTable *hash;
zval *parameter;
struct pdo_bound_param_data *pparam = NULL;
hash = is_param ? stmt->bound_params : stmt->bound_columns;
if (!hash) {
ALLOC_HASHTABLE(hash);
zend_hash_init(hash, 13, NULL, param_dtor, 0);
if (is_param) {
stmt->bound_params = hash;
} else {
stmt->bound_columns = hash;
}
}
if (!Z_ISREF(param->parameter)) {
parameter = ¶m->parameter;
} else {
parameter = Z_REFVAL(param->parameter);
}
if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_STR && param->max_value_len <= 0 && !Z_ISNULL_P(parameter)) {
if (Z_TYPE_P(parameter) == IS_DOUBLE) {
char *p;
int len = spprintf(&p, 0, "%.*H", (int) EG(precision), Z_DVAL_P(parameter));
ZVAL_STRINGL(parameter, p, len);
efree(p);
} else {
convert_to_string(parameter);
}
} else if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_INT && (Z_TYPE_P(parameter) == IS_FALSE || Z_TYPE_P(parameter) == IS_TRUE)) {
convert_to_long(parameter);
} else if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_BOOL && Z_TYPE_P(parameter) == IS_LONG) {
convert_to_boolean(parameter);
}
param->stmt = stmt;
param->is_param = is_param;
if (Z_REFCOUNTED(param->driver_params)) {
Z_ADDREF(param->driver_params);
}
if (!is_param && param->name && stmt->columns) {
/* try to map the name to the column */
int i;
for (i = 0; i < stmt->column_count; i++) {
if (strncmp(stmt->columns[i].name, param->name->val, param->name->len + 1) == 0) {
param->paramno = i;
break;
}
}
/* if you prepare and then execute passing an array of params keyed by names,
* then this will trigger, and we don't want that */
if (param->paramno == -1) {
char *tmp;
spprintf(&tmp, 0, "Did not find column name '%s' in the defined columns; it will not be bound", param->name->val);
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", tmp);
efree(tmp);
}
}
if (param->name) {
if (is_param && param->name->val[0] != ':') {
zend_string *temp = zend_string_alloc(param->name->len + 1, 0);
temp->val[0] = ':';
memmove(temp->val + 1, param->name->val, param->name->len + 1);
param->name = temp;
} else {
param->name = zend_string_init(param->name->val, param->name->len, 0);
}
}
if (is_param && !rewrite_name_to_position(stmt, param)) {
if (param->name) {
zend_string_release(param->name);
param->name = NULL;
}
return 0;
}
/* ask the driver to perform any normalization it needs on the
* parameter name. Note that it is illegal for the driver to take
* a reference to param, as it resides in transient storage only
* at this time. */
if (stmt->methods->param_hook) {
if (!stmt->methods->param_hook(stmt, param, PDO_PARAM_EVT_NORMALIZE
)) {
if (param->name) {
zend_string_release(param->name);
param->name = NULL;
}
return 0;
}
}
/* delete any other parameter registered with this number.
* If the parameter is named, it will be removed and correctly
* disposed of by the hash_update call that follows */
if (param->paramno >= 0) {
zend_hash_index_del(hash, param->paramno);
}
/* allocate storage for the parameter, keyed by its "canonical" name */
if (param->name) {
pparam = zend_hash_update_mem(hash, param->name, param, sizeof(struct pdo_bound_param_data));
} else {
pparam = zend_hash_index_update_mem(hash, param->paramno, param, sizeof(struct pdo_bound_param_data));
}
/* tell the driver we just created a parameter */
if (stmt->methods->param_hook) {
if (!stmt->methods->param_hook(stmt, pparam, PDO_PARAM_EVT_ALLOC
)) {
/* undo storage allocation; the hash will free the parameter
* name if required */
if (pparam->name) {
zend_hash_del(hash, pparam->name);
} else {
zend_hash_index_del(hash, pparam->paramno);
}
/* param->parameter is freed by hash dtor */
ZVAL_UNDEF(¶m->parameter);
return 0;
}
}
return 1;
}
/* }}} */
/* {{{ proto bool PDOStatement::execute([array $bound_input_params])
Execute a prepared statement, optionally binding parameters */
static PHP_METHOD(PDOStatement, execute)
{
zval *input_params = NULL;
int ret = 1;
PHP_STMT_GET_OBJ;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "|a!", &input_params)) {
RETURN_FALSE;
}
PDO_STMT_CLEAR_ERR();
if (input_params) {
struct pdo_bound_param_data param;
zval *tmp;
zend_string *key = NULL;
zend_ulong num_index;
if (stmt->bound_params) {
zend_hash_destroy(stmt->bound_params);
FREE_HASHTABLE(stmt->bound_params);
stmt->bound_params = NULL;
}
ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(input_params), num_index, key, tmp) {
memset(¶m, 0, sizeof(param));
if (key) {
/* yes this is correct. we don't want to count the null byte. ask wez */
param.name = key;
param.paramno = -1;
} else {
/* we're okay to be zero based here */
/* num_index is unsignend
if (num_index < 0) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY093", NULL);
RETURN_FALSE;
}
*/
param.paramno = num_index;
}
param.param_type = PDO_PARAM_STR;
ZVAL_COPY(¶m.parameter, tmp);
if (!really_register_bound_param(¶m, stmt, 1)) {
if (!Z_ISUNDEF(param.parameter)) {
zval_ptr_dtor(¶m.parameter);
}
RETURN_FALSE;
}
} ZEND_HASH_FOREACH_END();
}
if (PDO_PLACEHOLDER_NONE == stmt->supports_placeholders) {
/* handle the emulated parameter binding,
* stmt->active_query_string holds the query with binds expanded and
* quoted.
*/
ret = pdo_parse_params(stmt, stmt->query_string, stmt->query_stringlen,
&stmt->active_query_string, &stmt->active_query_stringlen);
if (ret == 0) {
/* no changes were made */
stmt->active_query_string = stmt->query_string;
stmt->active_query_stringlen = stmt->query_stringlen;
ret = 1;
} else if (ret == -1) {
/* something broke */
PDO_HANDLE_STMT_ERR();
RETURN_FALSE;
}
} else if (!dispatch_param_event(stmt, PDO_PARAM_EVT_EXEC_PRE)) {
PDO_HANDLE_STMT_ERR();
RETURN_FALSE;
}
if (stmt->methods->executer(stmt)) {
if (stmt->active_query_string && stmt->active_query_string != stmt->query_string) {
efree(stmt->active_query_string);
}
stmt->active_query_string = NULL;
if (!stmt->executed) {
/* this is the first execute */
if (stmt->dbh->alloc_own_columns && !stmt->columns) {
/* for "big boy" drivers, we need to allocate memory to fetch
* the results into, so lets do that now */
ret = pdo_stmt_describe_columns(stmt);
}
stmt->executed = 1;
}
if (ret && !dispatch_param_event(stmt, PDO_PARAM_EVT_EXEC_POST)) {
RETURN_FALSE;
}
RETURN_BOOL(ret);
}
if (stmt->active_query_string && stmt->active_query_string != stmt->query_string) {
efree(stmt->active_query_string);
}
stmt->active_query_string = NULL;
PDO_HANDLE_STMT_ERR();
RETURN_FALSE;
}
/* }}} */
static inline void fetch_value(pdo_stmt_t *stmt, zval *dest, int colno, int *type_override) /* {{{ */
{
struct pdo_column_data *col;
char *value = NULL;
size_t value_len = 0;
int caller_frees = 0;
int type, new_type;
col = &stmt->columns[colno];
type = PDO_PARAM_TYPE(col->param_type);
new_type = type_override ? PDO_PARAM_TYPE(*type_override) : type;
value = NULL;
value_len = 0;
stmt->methods->get_col(stmt, colno, &value, &value_len, &caller_frees);
switch (type) {
case PDO_PARAM_ZVAL:
if (value && value_len == sizeof(zval)) {
ZVAL_COPY_VALUE(dest, (zval *)value);
} else {
ZVAL_NULL(dest);
}
if (Z_TYPE_P(dest) == IS_NULL) {
type = new_type;
}
break;
case PDO_PARAM_INT:
if (value && value_len == sizeof(zend_long)) {
ZVAL_LONG(dest, *(zend_long*)value);
break;
}
ZVAL_NULL(dest);
break;
case PDO_PARAM_BOOL:
if (value && value_len == sizeof(zend_bool)) {
ZVAL_BOOL(dest, *(zend_bool*)value);
break;
}
ZVAL_NULL(dest);
break;
case PDO_PARAM_LOB:
if (value == NULL) {
ZVAL_NULL(dest);
} else if (value_len == 0) {
/* Warning, empty strings need to be passed as stream */
if (stmt->dbh->stringify || new_type == PDO_PARAM_STR) {
zend_string *buf;
buf = php_stream_copy_to_mem((php_stream*)value, PHP_STREAM_COPY_ALL, 0);
if (buf == NULL) {
ZVAL_EMPTY_STRING(dest);
} else {
ZVAL_STR(dest, buf);
}
php_stream_close((php_stream*)value);
} else {
php_stream_to_zval((php_stream*)value, dest);
}
} else if (!stmt->dbh->stringify && new_type != PDO_PARAM_STR) {
/* they gave us a string, but LOBs are represented as streams in PDO */
php_stream *stm;
#ifdef TEMP_STREAM_TAKE_BUFFER
if (caller_frees) {
stm = php_stream_memory_open(TEMP_STREAM_TAKE_BUFFER, value, value_len);
if (stm) {
caller_frees = 0;
}
} else
#endif
{
stm = php_stream_memory_open(TEMP_STREAM_READONLY, value, value_len);
}
if (stm) {
php_stream_to_zval(stm, dest);
} else {
ZVAL_NULL(dest);
}
} else {
ZVAL_STRINGL(dest, value, value_len);
}
break;
case PDO_PARAM_STR:
if (value && !(value_len == 0 && stmt->dbh->oracle_nulls == PDO_NULL_EMPTY_STRING)) {
ZVAL_STRINGL(dest, value, value_len);
break;
}
default:
ZVAL_NULL(dest);
}
if (type != new_type) {
switch (new_type) {
case PDO_PARAM_INT:
convert_to_long_ex(dest);
break;
case PDO_PARAM_BOOL:
convert_to_boolean_ex(dest);
break;
case PDO_PARAM_STR:
convert_to_string_ex(dest);
break;
case PDO_PARAM_NULL:
convert_to_null_ex(dest);
break;
default:
;
}
}
if (caller_frees && value) {
efree(value);
}
if (stmt->dbh->stringify) {
switch (Z_TYPE_P(dest)) {
case IS_LONG:
case IS_DOUBLE:
convert_to_string(dest);
break;
}
}
if (Z_TYPE_P(dest) == IS_NULL && stmt->dbh->oracle_nulls == PDO_NULL_TO_STRING) {
ZVAL_EMPTY_STRING(dest);
}
}
/* }}} */
static int do_fetch_common(pdo_stmt_t *stmt, enum pdo_fetch_orientation ori, zend_long offset, int do_bind) /* {{{ */
{
if (!stmt->executed) {
return 0;
}
if (!dispatch_param_event(stmt, PDO_PARAM_EVT_FETCH_PRE)) {
return 0;
}
if (!stmt->methods->fetcher(stmt, ori, offset)) {
return 0;
}
/* some drivers might need to describe the columns now */
if (!stmt->columns && !pdo_stmt_describe_columns(stmt)) {
return 0;
}
if (!dispatch_param_event(stmt, PDO_PARAM_EVT_FETCH_POST)) {
return 0;
}
if (do_bind && stmt->bound_columns) {
/* update those bound column variables now */
struct pdo_bound_param_data *param;
ZEND_HASH_FOREACH_PTR(stmt->bound_columns, param) {
if (param->paramno >= 0) {
if (!Z_ISREF(param->parameter)) {
continue;
}
// ???? convert_to_string(¶m->parameter);
/* delete old value */
zval_dtor(Z_REFVAL(param->parameter));
/* set new value */
fetch_value(stmt, Z_REFVAL(param->parameter), param->paramno, (int *)¶m->param_type);
/* TODO: some smart thing that avoids duplicating the value in the
* general loop below. For now, if you're binding output columns,
* it's better to use LAZY or BOUND fetches if you want to shave
* off those cycles */
}
} ZEND_HASH_FOREACH_END();
}
return 1;
}
/* }}} */
static int do_fetch_class_prepare(pdo_stmt_t *stmt) /* {{{ */
{
zend_class_entry *ce = stmt->fetch.cls.ce;
zend_fcall_info *fci = &stmt->fetch.cls.fci;
zend_fcall_info_cache *fcc = &stmt->fetch.cls.fcc;
fci->size = sizeof(zend_fcall_info);
if (!ce) {
stmt->fetch.cls.ce = ZEND_STANDARD_CLASS_DEF_PTR;
ce = ZEND_STANDARD_CLASS_DEF_PTR;
}
if (ce->constructor) {
fci->function_table = &ce->function_table;
ZVAL_UNDEF(&fci->function_name);
fci->symbol_table = NULL;
fci->retval = &stmt->fetch.cls.retval;
fci->param_count = 0;
fci->params = NULL;
fci->no_separation = 1;
zend_fcall_info_args_ex(fci, ce->constructor, &stmt->fetch.cls.ctor_args);
fcc->initialized = 1;
fcc->function_handler = ce->constructor;
fcc->calling_scope = EG(scope);
fcc->called_scope = ce;
return 1;
} else if (!Z_ISUNDEF(stmt->fetch.cls.ctor_args)) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "user-supplied class does not have a constructor, use NULL for the ctor_params parameter, or simply omit it");
return 0;
} else {
return 1; /* no ctor no args is also ok */
}
}
/* }}} */
static int make_callable_ex(pdo_stmt_t *stmt, zval *callable, zend_fcall_info * fci, zend_fcall_info_cache * fcc, int num_args) /* {{{ */
{
char *is_callable_error = NULL;
if (zend_fcall_info_init(callable, 0, fci, fcc, NULL, &is_callable_error) == FAILURE) {
if (is_callable_error) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", is_callable_error);
efree(is_callable_error);
} else {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "user-supplied function must be a valid callback");
}
return 0;
}
if (is_callable_error) {
/* Possible E_STRICT error message */
efree(is_callable_error);
}
fci->param_count = num_args; /* probably less */
fci->params = safe_emalloc(sizeof(zval), num_args, 0);
return 1;
}
/* }}} */
static int do_fetch_func_prepare(pdo_stmt_t *stmt) /* {{{ */
{
zend_fcall_info *fci = &stmt->fetch.cls.fci;
zend_fcall_info_cache *fcc = &stmt->fetch.cls.fcc;
if (!make_callable_ex(stmt, &stmt->fetch.func.function, fci, fcc, stmt->column_count)) {
return 0;
} else {
stmt->fetch.func.values = safe_emalloc(sizeof(zval), stmt->column_count, 0);
return 1;
}
}
/* }}} */
static int do_fetch_opt_finish(pdo_stmt_t *stmt, int free_ctor_agrs) /* {{{ */
{
/* fci.size is used to check if it is valid */
if (stmt->fetch.cls.fci.size && stmt->fetch.cls.fci.params) {
if (!Z_ISUNDEF(stmt->fetch.cls.ctor_args)) {
/* Added to free constructor arguments ??? */
zend_fcall_info_args_clear(&stmt->fetch.cls.fci, 1);
} else {
efree(stmt->fetch.cls.fci.params);
}
stmt->fetch.cls.fci.params = NULL;
}
stmt->fetch.cls.fci.size = 0;
if (!Z_ISUNDEF(stmt->fetch.cls.ctor_args) && free_ctor_agrs) {
zval_ptr_dtor(&stmt->fetch.cls.ctor_args);
ZVAL_UNDEF(&stmt->fetch.cls.ctor_args);
stmt->fetch.cls.fci.param_count = 0;
}
if (stmt->fetch.func.values) {
efree(stmt->fetch.func.values);
stmt->fetch.func.values = NULL;
}
return 1;
}
/* }}} */
/* perform a fetch. If do_bind is true, update any bound columns.
* If return_value is not null, store values into it according to HOW. */
static int do_fetch(pdo_stmt_t *stmt, int do_bind, zval *return_value, enum pdo_fetch_type how, enum pdo_fetch_orientation ori, zend_long offset, zval *return_all) /* {{{ */
{
int flags, idx, old_arg_count = 0;
zend_class_entry *ce = NULL, *old_ce = NULL;
zval grp_val, *pgrp, retval, old_ctor_args;
int colno;
if (how == PDO_FETCH_USE_DEFAULT) {
how = stmt->default_fetch_type;
}
flags = how & PDO_FETCH_FLAGS;
how = how & ~PDO_FETCH_FLAGS;
if (!do_fetch_common(stmt, ori, offset, do_bind)) {
return 0;
}
if (how == PDO_FETCH_BOUND) {
RETVAL_TRUE;
return 1;
}
if (flags & PDO_FETCH_GROUP && stmt->fetch.column == -1) {
colno = 1;
} else {
colno = stmt->fetch.column;
}
if (return_value) {
int i = 0;
if (how == PDO_FETCH_LAZY) {
get_lazy_object(stmt, return_value);
return 1;
}
RETVAL_FALSE;
switch (how) {
case PDO_FETCH_USE_DEFAULT:
case PDO_FETCH_ASSOC:
case PDO_FETCH_BOTH:
case PDO_FETCH_NUM:
case PDO_FETCH_NAMED:
if (!return_all) {
ZVAL_NEW_ARR(return_value);
zend_hash_init(Z_ARRVAL_P(return_value), stmt->column_count, NULL, ZVAL_PTR_DTOR, 0);;
} else {
array_init(return_value);
}
break;
case PDO_FETCH_KEY_PAIR:
if (stmt->column_count != 2) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "PDO::FETCH_KEY_PAIR fetch mode requires the result set to contain extactly 2 columns.");
return 0;
}
if (!return_all) {
array_init(return_value);
}
break;
case PDO_FETCH_COLUMN:
if (colno >= 0 && colno < stmt->column_count) {
if (flags == PDO_FETCH_GROUP && stmt->fetch.column == -1) {
fetch_value(stmt, return_value, 1, NULL);
} else if (flags == PDO_FETCH_GROUP && colno) {
fetch_value(stmt, return_value, 0, NULL);
} else {
fetch_value(stmt, return_value, colno, NULL);
}
if (!return_all) {
return 1;
} else {
break;
}
} else {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "Invalid column index");
}
return 0;
case PDO_FETCH_OBJ:
object_init_ex(return_value, ZEND_STANDARD_CLASS_DEF_PTR);
break;
case PDO_FETCH_CLASS:
if (flags & PDO_FETCH_CLASSTYPE) {
zval val;
zend_class_entry *cep;
old_ce = stmt->fetch.cls.ce;
ZVAL_COPY_VALUE(&old_ctor_args, &stmt->fetch.cls.ctor_args);
old_arg_count = stmt->fetch.cls.fci.param_count;
do_fetch_opt_finish(stmt, 0);
fetch_value(stmt, &val, i++, NULL);
if (Z_TYPE(val) != IS_NULL) {
convert_to_string(&val);
if ((cep = zend_lookup_class(Z_STR(val))) == NULL) {
stmt->fetch.cls.ce = ZEND_STANDARD_CLASS_DEF_PTR;
} else {
stmt->fetch.cls.ce = cep;
}
}
do_fetch_class_prepare(stmt);
zval_dtor(&val);
}
ce = stmt->fetch.cls.ce;
if (!ce) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "No fetch class specified");
return 0;
}
if ((flags & PDO_FETCH_SERIALIZE) == 0) {
object_init_ex(return_value, ce);
if (!stmt->fetch.cls.fci.size) {
if (!do_fetch_class_prepare(stmt))
{
return 0;
}
}
if (ce->constructor && (flags & PDO_FETCH_PROPS_LATE)) {
stmt->fetch.cls.fci.object = Z_OBJ_P(return_value);
stmt->fetch.cls.fcc.object = Z_OBJ_P(return_value);
if (zend_call_function(&stmt->fetch.cls.fci, &stmt->fetch.cls.fcc) == FAILURE) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "could not call class constructor");
return 0;
} else {
if (!Z_ISUNDEF(stmt->fetch.cls.retval)) {
zval_ptr_dtor(&stmt->fetch.cls.retval);
ZVAL_UNDEF(&stmt->fetch.cls.retval);
}
}
}
}
break;
case PDO_FETCH_INTO:
if (Z_ISUNDEF(stmt->fetch.into)) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "No fetch-into object specified.");
return 0;
break;
}
ZVAL_COPY(return_value, &stmt->fetch.into);
if (Z_OBJ_P(return_value)->ce == ZEND_STANDARD_CLASS_DEF_PTR) {
how = PDO_FETCH_OBJ;
}
break;
case PDO_FETCH_FUNC:
if (Z_ISUNDEF(stmt->fetch.func.function)) {
pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "No fetch function specified");
return 0;
}
if (!stmt->fetch.func.fci.size) {
if (!do_fetch_func_prepare(stmt))
{
return 0;
}
}
break;
default:
/* shouldn't happen */