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PHP : Function Reference : PostgreSQL Functions : pg_cancel_query

pg_cancel_query

Cancel an asynchronous query (PHP 4 >= 4.2.0, PHP 5)
bool pg_cancel_query ( resource connection )

pg_cancel_query() cancels an asynchronous query sent with pg_send_query(), pg_send_query_params() or pg_send_execute(). You cannot cancel a query executed using pg_query().

Parameters

connection

PostgreSQL database connection resource.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 1903. pg_cancel_query() example

<?php
 $dbconn
= pg_connect("dbname=publisher") or die("Could not connect");

 if (!
pg_connection_busy($dbconn)) {
     
pg_send_query($dbconn, "select * from authors; select count(*) from authors;");
 }
 
 
$res1 = pg_get_result($dbconn);
 echo
"First call to pg_get_result(): $res1\n";
 
$rows1 = pg_num_rows($res1);
 echo
"$res1 has $rows1 records\n\n";
 
 
// Cancel the currently running query.  Will be the second query if it is
 // still running.
 
pg_cancel_query($dbconn);
?>

The above example will output:

First call to pg_get_result(): Resource id #3
Resource id #3 has 3 records


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pg_affected_rows
pg_cancel_query
pg_client_encoding
pg_close
pg_connect
pg_connection_busy
pg_connection_reset
pg_connection_status
pg_convert
pg_copy_from
pg_copy_to
pg_dbname
pg_delete
pg_end_copy
pg_escape_bytea
pg_escape_string
pg_execute
pg_fetch_all_columns
pg_fetch_all
pg_fetch_array
pg_fetch_assoc
pg_fetch_object
pg_fetch_result
pg_fetch_row
pg_field_is_null
pg_field_name
pg_field_num
pg_field_prtlen
pg_field_size
pg_field_table
pg_field_type_oid
pg_field_type
pg_free_result
pg_get_notify
pg_get_pid
pg_get_result
pg_host
pg_insert
pg_last_error
pg_last_notice
pg_last_oid
pg_lo_close
pg_lo_create
pg_lo_export
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pg_lo_open
pg_lo_read_all
pg_lo_read
pg_lo_seek
pg_lo_tell
pg_lo_unlink
pg_lo_write
pg_meta_data
pg_num_fields
pg_num_rows
pg_options
pg_parameter_status
pg_pconnect
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pg_prepare
pg_put_line
pg_query_params
pg_query
pg_result_error_field
pg_result_error
pg_result_seek
pg_result_status
pg_select
pg_send_execute
pg_send_prepare
pg_send_query_params
pg_send_query
pg_set_client_encoding
pg_set_error_verbosity
pg_trace
pg_transaction_status
pg_tty
pg_unescape_bytea
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