pg_delete

(PHP 4 >= 4.3.0, PHP 5)

pg_delete --  删除记录

说明

mixed pg_delete ( resource connection, string table_name, array assoc_array [, int options] )

pg_delete() 删除符合条件的记录,条件在 assoc_array 中以 field=>value 格式给出。如果指定了 option,则 pg_convert() 按照该选项作用于 assoc_array 之上。

例子 1. pg_delete() 例子

<?php
    $db
= pg_connect('dbname=foo');
    
// This is safe, since $_POST is converted automatically
    
$res = pg_delete($db, 'post_log', $_POST);
    if (
$res) {
        echo
"POST data is deleted: $res\n";
    }
    else {
        echo
"User must have sent wrong inputs\n";
    }
?>

警告

本函数是实验性的。本函数的行为,包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。

参见 pg_convert()


add a note add a note User Contributed Notes
27-Apr-2004 06:47
One should take care when checking the return value.
0 == false which is not equal with failed delete.

if(!$res)
  echo "Nothing was deleted";