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PHP : Function Reference : FrontBase Functions : fbsql_num_rows

fbsql_num_rows

Get number of rows in result (PHP 4 >= 4.0.6, PHP 5)
int fbsql_num_rows ( resource result )

Example 709. fbsql_num_rows() example

<?php

$link
= fbsql_connect("localhost", "username", "password");
fbsql_select_db("database", $link);

$result = fbsql_query("SELECT * FROM table1;", $link);
$num_rows = fbsql_num_rows($result);

echo
"$num_rows Rows\n";

?>

Code Examples / Notes » fbsql_num_rows

daggillies

Note that this function will not always return the actual size of a result set. For example, if you are doing a two-table join along the lines of "SELECT * FROM T1,T2 where T1.x=T2.x" you will get a result of -1. This is due to the 'lazy execution' model in FrontBase whereby result rows are only returned as you request them. If you absolutely have to have the number of rows in advance then you will have to use COUNT(*) first. Most of the time you do not need to know the exact number of rows; it is good enough to know if the size of the result set is non-zero.
David Gillies
San Jose
Costa Rica


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fbsql_autocommit
fbsql_blob_size
fbsql_change_user
fbsql_clob_size
fbsql_close
fbsql_commit
fbsql_connect
fbsql_create_blob
fbsql_create_clob
fbsql_create_db
fbsql_data_seek
fbsql_database_password
fbsql_database
fbsql_db_query
fbsql_db_status
fbsql_drop_db
fbsql_errno
fbsql_error
fbsql_fetch_array
fbsql_fetch_assoc
fbsql_fetch_field
fbsql_fetch_lengths
fbsql_fetch_object
fbsql_fetch_row
fbsql_field_flags
fbsql_field_len
fbsql_field_name
fbsql_field_seek
fbsql_field_table
fbsql_field_type
fbsql_free_result
fbsql_get_autostart_info
fbsql_hostname
fbsql_insert_id
fbsql_list_dbs
fbsql_list_fields
fbsql_list_tables
fbsql_next_result
fbsql_num_fields
fbsql_num_rows
fbsql_password
fbsql_pconnect
fbsql_query
fbsql_read_blob
fbsql_read_clob
fbsql_result
fbsql_rollback
fbsql_rows_fetched
fbsql_select_db
fbsql_set_characterset
fbsql_set_lob_mode
fbsql_set_password
fbsql_set_transaction
fbsql_start_db
fbsql_stop_db
fbsql_table_name
fbsql_tablename
fbsql_username
fbsql_warnings
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