Home Backend Development PHP Tutorial ThinkPHP数据模板展示——使用函数、默认值、运算符

ThinkPHP数据模板展示——使用函数、默认值、运算符

Jun 13, 2016 pm 12:12 PM
data echo name strtoupper substr

ThinkPHP数据模板显示——使用函数、默认值、运算符

六、使用函数

1.使用函数显示:

{$data.name|md5}
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编译后的结果是:

<?php echo (md5($data['name']));?>
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2.如果函数有多个参数需要调用,则使用:

{$create_time | data="y-m-d",###}
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表示date函数传入两个参数,每个参数用逗号分割,这里第一个参数是y-m-d,第二个参数是前面要输出的create_time变量,因为该哦变量是第二个参数,因此需要用###标示变量位置,编译后的结果是:

<?php echo (date('y-m-d',$create_time));?>
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3.如果前面输出的变量在后面定义的函数的第一个参数,则可以直接使用:

{$data.name | substr=0,3}
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表示输出

<?php echo (substr($data['name'],0,3)); ?>
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也可以使用:

{$data.name|substr=###,0,3} ?(没有这个必要)

4.还可以支持多个函数过滤,多个函数之间用"|"分割即可,例如:

{$name|md5|strtoupper|substr=0,3}
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编译后的结果是:

<?php echo (substr(strtoupper(md5($name)),0,3));?>
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函数会按照从左到右的顺序依次调用

还可以直接这样写:

{:substr(strtoupper(md5($name)),0,3)}
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七、默认值输出

1.可以给变量输出提供默认值,eg:

{$user.nickname|default="这家伙很懒,什么也没留下"}
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2.对系统变量也可以支持默认值输出,eg:

{$Think.get.name|default="名称为空"}
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八、使用运算符

对于模板的输出使用运算符,包括对 "+" "-" "*" "/" "%"的支持

注:在使用运算符的时候,不再支持点语法和常规的函数用法

{$user.age+10}   //页面会不显示{$user['age']+10}  //会正常的进行运算
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