Question

我在我的网站上使用以下声明。我希望能够说明selected_plan_id是4,5，还是6.我使用的任何OR变体都会破坏我的代码。

 <?php if($CURRENT_USER['selected_plan_id'] == '5'): ?>

这是我到目前为止尝试的那些：

 <?php if($CURRENT_USER['selected_plan_id'] == '5' or '4' or '6'): ?>

:(错误

 <?php if($CURRENT_USER['selected_plan_id'] == '"5", "4", "6"'): ?>

:(为每个用户显示此内容

 <?php if($CURRENT_USER['selected_plan_id'] == '5'): or if($CURRENT_USER['selected_plan_id'] == '4'): or if($CURRENT_USER['selected_plan_id'] == '6'): ?>

:(错误

Answer 1

使用||声明。

<?php if($CURRENT_USER['selected_plan_id'] == '4' || $CURRENT_USER['selected_plan_id'] == '5' || $CURRENT_USER['selected_plan_id'] == '6'): ?>

或

使用in_array()。

$arr = Array (4,5,6);
<?php if(in_array($CURRENT_USER['selected_plan_id'],$arr)): ?>

Answer 2

<?php if( ( $CURRENT_USER['selected_plan_id'] == '4') || ( $CURRENT_USER['selected_plan_id'] == '5') || ( $CURRENT_USER['selected_plan_id'] == '6') ) : ?>

这将查看$CURRENT_USER['selected_plan_id']是4还是5还是6

Answer 3

我的直觉会引导我in_array()，因为这似乎是表达这个想法的简单方法。
以下是＆＃34;或＆＃34;的手册页。运营商。 http://php.net/manual/en/language.operators.logical.php http://php.net/manual/en/language.operators.precedence.php

带有OR运算符的PHP if语句

3 个答案: