如何在php中调用函数？ [英] How to call a function in php?

问题描述

我在名为functions.php的页面中有一个名为ObtainUserName的函数。对于我在我的页面上工作的实例purchase_edit.php。在该页面内我有以下数据名称，日期，付款方式，总计，书籍和所有这些都在PHP中。这就是我所说的。我想获取用户名而不是iduser。

 <？  php     echo     ObtainUserName（$ row_Datapurchase ['iduser']）;    ？ >  <   / p  >  
 
 <   p  > 日期：<？  php     echo    < span class =code-summarycomment> $ row_Datapurchase ['datepurchase'];    ？ >  <   / p  >  
 
 <   p  > 付款方式：<？  php     echo     $ row_Datapurchase ['typepayment'];    ？ < span class =code-summarycomment>>  <   / p  &克t;  
 
 <   p  > 总计：<？  php     echo     $ row_Datapurchase ['total'];    ？ > ;  <   / p  >  
 
 <   p  > 图书：<   / p  >  

功能来源

函数ObtainUserName（$ identifier）
 {
 
  global  $ database_databaseConnection， $ databaseConnection ; 
 mysql_select_db（$ database_databaseConnection，$ databaseConnection）; 
  $ query_QueryFunction  = sprintf（  SELECT` user`.name FROM`user` WHERE`user`.iduser =％s，$ identifier）; 
  $ QueryFunction  = mysql_query（$ query_QueryFunction，$ databaseConnection）或 die（mysql_error（）） ; 
  $ row_QueryFunction  = mysql_fetch_assoc（$ QueryFunction）; 
  $ totalRows_QueryFunction  = mysql_num_rows（$ QueryFunction）; 
 
  return  $ row_QueryFunction [' 名称]; 
 mysql_free_result（$ QueryFunction）; 
} 

解决方案

row_Datapurchase ['iduser']）; ？ > < / p >

< p > 日期：<？ php echo

row_Datapurchase ['datepurchase']; ？ > < / p >

< < span class =code-leadattribute> p > 付款方式：<？ php echo

row_Datapurchase ['typepayment']; ？ > < / p >

< p > 总计：<？ php echo

I have a function called ObtainUserName in a page called functions.php. For an instance im working on my page purchase_edit.php. Inside that page i have the following data Name, Date, Means of Payment, Total, Books and all of them are in php. This is what im talking about. I want to obtain the user name instead of the iduser.

<?php echo ObtainUserName($row_Datapurchase['iduser']); ?></p>

  <p>Date:<?php echo $row_Datapurchase['datepurchase']; ?></p>

  <p>Means of Payment:<?php echo $row_Datapurchase['typepayment']; ?></p>

  <p>Total:<?php echo $row_Datapurchase['total']; ?></p>

  <p>Books:</p>

Function Source

function ObtainUserName($identifier)
{

  global $database_databaseConnection, $databaseConnection;
    mysql_select_db($database_databaseConnection, $databaseConnection);
    $query_QueryFunction = sprintf("SELECT `user`.name FROM `user` WHERE `user`.iduser = %s",$identifier);
    $QueryFunction = mysql_query($query_QueryFunction, $databaseConnection) or die(mysql_error());
    $row_QueryFunction = mysql_fetch_assoc($QueryFunction);
    $totalRows_QueryFunction = mysql_num_rows($QueryFunction);

     return $row_QueryFunction['name'];
    mysql_free_result($QueryFunction);
}

解决方案

row_Datapurchase['iduser']); ?></p> <p>Date:<?php echo

row_Datapurchase['datepurchase']; ?></p> <p>Means of Payment:<?php echo

row_Datapurchase['typepayment']; ?></p> <p>Total:<?php echo

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