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Added sqlite_fetch_string(), for speedy fetching of data from database

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cursor containing only a single column.
This commit is contained in:
Ilia Alshanetsky 2003-05-13 23:51:25 +00:00
parent 0360a2c012
commit f1c20d3b55
2 changed files with 52 additions and 0 deletions
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51
ext/sqlite/sqlite.c
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@ -115,6 +115,7 @@ function_entry sqlite_functions[] = {
PHP_FE(sqlite_close, NULL)
PHP_FE(sqlite_query, NULL)
PHP_FE(sqlite_fetch_array, NULL)
PHP_FE(sqlite_fetch_string, NULL)
PHP_FE(sqlite_current, NULL)
PHP_FE(sqlite_column, NULL)
PHP_FE(sqlite_libversion, NULL)
@ -1167,6 +1168,56 @@ PHP_FUNCTION(sqlite_fetch_array)
}
/* }}} */
/* {{{ proto string sqlite_fetch_array(resource result [, bool decode_binary])
Fetches first column of a result set as a string */
PHP_FUNCTION(sqlite_fetch_string)
{
zval *zres;
zend_bool decode_binary = 1;
struct php_sqlite_result *res;
char *decoded = NULL;
int decoded_len;
const char **rowdata;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|b", &zres, &decode_binary)) {
return;
}
ZEND_FETCH_RESOURCE(res, struct php_sqlite_result *, &zres, -1, "sqlite result", le_sqlite_result);
/* check if there are any more rows on the cursor */
if (res->curr_row >= res->nrows) {
RETURN_FALSE;
}
if (res->buffered) {
rowdata = (const char**)&res->table[res->curr_row * res->ncolumns];
} else {
rowdata = (const char**)res->table;
}
if (decode_binary && rowdata[0] != NULL && rowdata[0][0] == '\x01') {
decoded = do_alloca(strlen(rowdata[0]));
decoded_len = sqlite_decode_binary(rowdata[0]+1, decoded);
} else {
decoded = (char*)rowdata[0];
decoded_len = decoded ? strlen(decoded) : 0;
}
if (!res->buffered) {
/* non buffered: fetch next row */
php_sqlite_fetch(res TSRMLS_CC);
}
/* advance the row pointer */
res->curr_row++;
if (decoded == NULL) {
RETURN_NULL();
} else {
RETURN_STRINGL(decoded, decoded_len, 1);
}
}
/* }}} */
/* {{{ proto array sqlite_fetch_array(resource result [, int result_type, bool decode_binary])
Fetches the current row from a result set as an array */
PHP_FUNCTION(sqlite_current)