mysql_field_type

(PHP 3, PHP 4 )

mysql_field_type --  取得结果集中指定字段的类型

说明

string mysql_field_type ( resource result, int field_offset)

mysql_field_type()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

例子 1. MySQL 字段类型

<?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。