Php/docs/function.pg-delete
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pg_delete
(PHP 4 >= 4.3.0, PHP 5, PHP 7)
pg_delete — 删除记录
说明
pg_delete
( resource $connection
, string $table_name
, array $assoc_array
[, int $options = PGSQL_DML_EXEC
] ) : mixed
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。
参数
connection- PostgreSQL database connection resource.
table_name- Name of the table from which to delete rows.
assoc_array- An array whose keys are field names in the table
table_name, and whose values are the values of those fields that are to be deleted. options- Any number of
PGSQL_CONV_FORCE_NULL,PGSQL_DML_NO_CONV,PGSQL_DML_EXECorPGSQL_DML_STRINGcombined. IfPGSQL_DML_STRINGis part of theoptionsthen query string is returned.
返回值
成功时返回 true, 或者在失败时返回 false。 Returns string if PGSQL_DML_STRING is passed
via options.
范例
Example #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"; }?>
Warning 此函数是实验性的。此函数的表象,包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担。