(PHP 4, PHP 5)
mysql_field_type — 取得结果集中指定字段的类型
mysql_field_type() 和 mysql_field_name() 函数相似。参数完全相同,但返回的是字段类型而不是字段名。字段类型有“int”,“real”,“string”,“blob”以及其它,详见 » MySQL 手册。
Example #1 mysql_field_type() 例子
<?php
mysql_connect("localhost", "mysql_username", "mysql_password");
mysql_select_db("mysql");
$result = mysql_query("SELECT * FROM func");
$fields = mysql_num_fields($result);
$rows = mysql_num_rows($result);
$table = mysql_field_table($result, 0);
echo "Your '".$table."' table has ".$fields." fields and ".$rows." record(s)\n";
echo "The table has the following fields:\n";
for ($i=0; $i < $fields; $i++) {
$type = mysql_field_type($result, $i);
$name = mysql_field_name($result, $i);
$len = mysql_field_len($result, $i);
$flags = mysql_field_flags($result, $i);
echo $type." ".$name." ".$len." ".$flags."\n";
}
mysql_free_result($result);
mysql_close();
?>
以上例子将产生如下输出:
Your 'func' table has 4 fields and 1 record(s) The table has the following fields: string name 64 not_null primary_key binary int ret 1 not_null string dl 128 not_null string type 9 not_null enum
为向下兼容仍然可以使用 mysql_fieldtype(),但反对这样做。