phpstudy所有软件,已经通过360安全检测认证,phpstudy linux web面板(docker),已发布安全检测与修复

pg_field_name

pg_field_name

(PHP 4 >= 4.2.0, PHP 5)

pg_field_name返回字段的名字

说明

string pg_field_name ( resource $result , int $field_number )

pg_field_name() 返回给定 PostgreSQL result 资源中的 field_number 所代表的字段名。字段编号从 0 开始。

Example #1 获取字段信息

<?php
    $dbconn 
pg_connect("dbname=publisher") or die("Could not connect");
    
$res pg_query($dbconn"select * from authors where author = 'Orwell'");
    
$i pg_num_fields($res);
    for (
$j 0$j $i$j++) {
        echo 
"column $j ";
        
$fieldname pg_field_name($res$j);
        echo 
"fieldname: $fieldname ";
        echo 
"printed length: ".pg_field_prtlen($res$fieldname)." characters ";
        echo 
"storage length: ".pg_field_size($res$j)." bytes ";
        echo 
"field type: ".pg_field_type($res$j)."  ";
}
?>

上例的输出如下:

column 0
fieldname: author
printed length: 6 characters
storage length: -1 bytes
field type: varchar

column 1
fieldname: year
printed length: 4 characters
storage length: 2 bytes
field type: int2

column 2
fieldname: title
printed length: 24 characters
storage length: -1 bytes
field type: varchar

Note:

本函数以前的名字为 pg_fieldname()

参见 pg_field_num()


  • 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_identifier
  • pg_escape_literal
  • pg_escape_string
  • pg_execute
  • pg_fetch_all
  • pg_fetch_all_columns
  • 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
  • pg_field_type_oid
  • 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
  • pg_lo_import
  • pg_lo_open
  • pg_lo_read
  • pg_lo_read_all
  • 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
  • pg_ping
  • pg_port
  • pg_prepare
  • pg_put_line
  • pg_query
  • pg_query_params
  • pg_result_error
  • pg_result_error_field
  • pg_result_seek
  • pg_result_status
  • pg_select
  • pg_send_execute
  • pg_send_prepare
  • pg_send_query
  • pg_send_query_params
  • pg_set_client_encoding
  • pg_set_error_verbosity
  • pg_trace
  • pg_transaction_status
  • pg_tty
  • pg_unescape_bytea
  • pg_untrace
  • pg_update
  • pg_version
  • PHP MySQL HTML CSS JavaScript MSSQL AJAX .NET JSP Linux Mac ASP 服务器 SQL jQuery C# C++ java Android IOS oracle MongoDB SQLite wamp 交通频道

    无数据提示还没有评论,楼主喊你快去抢前排~~~我要评论
    微信扫码登陆

    打开 微信
    扫一扫登录