致命错误函数名称必须是字符串 [英] fatal error Function name must be a string

问题描述

感谢回答我最后一个问题的人

thanks to the folks who answered my last question

我不断收到此错误:函数名称必须是第4行/home/pulsergf/public_html/these/vars.php中的字符串

i keep getting this error: Function name must be a string in /home/pulsergf/public_html/these/vars.php on line 4

<?
$array = array('555', '666', 'aaa', 'bbb', '777', '888');
$rand_index = mt_rand(0, count($array) / 2 - 1) * 2;
$define('BOUGHT','echo "$array[$rand_index]";');
$define('SOLD','echo "$array[$rand_index+1]";');
?>

所以它需要在数组中选择BOUGHT和SOLD对，但是我一直收到此错误.谢谢

so it needs to choose the pair in the array for BOUGHT and SOLD but i keep getting this error. thanks

推荐答案

您不需要define前面的$.

为什么?

当您在define之前加上$并在(...)中添加一些参数时，它将被解释为

When you precede define with $ followed by a few parameters within (...), it is interpreted as a variable function. Since the variable $define is not defined it becomes effective equivalent to calling a function without the function name.

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