yii2 session的使用方法

yii2打开session

<span>use</span><span>yii</span><span>\</span><span>web</span><span>\</span><span>Session</span><span>; </span><span>$session</span><span> = </span><span>Yii</span><span>::</span><span>$app</span><span>-></span><span>session</span><span>;</span><span>//</span><span> check if a session is already open</span><span>if</span><span>(</span><span>$session</span><span>-></span><span>isActive</span><span>)</span><span> ...</span><span>//</span><span> open a session</span><span>$session</span><span>-></span><span>open</span><span>(</span><span>)</span><span>;</span><span>//</span><span> close a session</span><span>$session</span><span>-></span><span>close</span><span>(</span><span>)</span><span>;</span><span>//</span><span> destroys all data registered to a session.</span><span>$session</span><span>-></span><span>destroy</span><span>(</span><span>)</span><span>;</span><span>设置</span><span>session</span><span>$session</span><span> = </span><span>Yii</span><span>::</span><span>$app</span><span>-></span><span>session</span><span>;</span><span>$session</span><span>-></span><span>set</span><span>(</span><span>'</span><span>user_id</span><span>'</span><span>, </span><span>'</span><span>1234</span><span>'</span><span>)</span><span>;</span><span>//</span><span>OR</span><span>$session</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span> = </span><span>'</span><span>1234</span><span>'</span><span>;</span><span>//</span><span>OR</span><span>$_SESSION</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span> = </span><span>'</span><span>1234</span><span>'</span><span>;</span><span>读取</span><span>session</span><span>$session</span><span> = </span><span>Yii</span><span>::</span><span>$app</span><span>-></span><span>session</span><span>;</span>

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<span>$user_id</span><span> = </span><span>$session</span><span>-></span><span>get</span><span>(</span><span>'</span><span>user_id</span><span>'</span><span>)</span><span>;</span><span>//</span><span>OR</span><span>$user_id</span><span> = </span><span>$session</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span>;</span><span>//</span><span>OR</span><span>$user_id</span><span> = </span><span>isset</span><span>(</span><span>$_SESSION</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span>)</span><span> ? </span><span>$_SESSION</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span> : </span><span>null</span><span>;销毁</span><span>session</span><span>$session</span><span> = </span><span>Yii</span><span>::</span><span>$app</span><span>-></span><span>session</span><span>;</span><span>$session</span><span>-></span><span>remove</span><span>(</span><span>'</span><span>user_id</span><span>'</span><span>)</span><span>;</span><span>//</span><span>OR</span><span>unset</span><span>(</span><span>$session</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span>)</span><span>;</span><span>//</span><span>OR</span><span>unset</span><span>(</span><span>$_SESSION</span><span>[</span><span>'</span><span>user_id</span><span>'</span><span>]</span><span>)</span><span>;</span><span>数组</span><span>session</span><span>的读取与设置</span><span>$session</span><span> = </span><span>Yii</span><span>::</span><span>$app</span><span>-></span><span>session</span><span>;</span><span>$session</span><span>[</span><span>'</span><span>u<i style="color:transparent">本文来源gaodai$ma#com搞$$代**码)网8</i><strong>搞代gaodaima码</strong>ser</span><span>'</span><span>]</span><span> = </span><span>[</span><span>'</span><span>id</span><span>'</span><span> => </span><span>1</span><span>,    </span><span>'</span><span>username</span><span>'</span><span> => </span><span>'</span><span>yiiuser</span><span>'</span><span>,</span><span>]</span><span>;</span><span>echo</span><span>$session</span><span>[</span><span>'</span><span>user</span><span>'</span><span>]</span><span>[</span><span>'</span><span>id</span><span>'</span><span>]</span><span>;</span><span>echo</span><span>$session</span><span>[</span><span>'</span><span>user</span><span>'</span><span>]</span><span>[</span><span>'</span><span>username</span><span>'</span><span>]</span><span>; </span><span>$session</span><span>[</span><span>'</span><span>user.id</span><span>'</span><span>]</span><span> = </span><span>1</span><span>;</span><span>$session</span><span>[</span><span>'</span><span>user.username</span><span>'</span><span>]</span><span> = </span><span>'</span><span>yiiuser</span><span>'</span><span>;</span>

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<span>转自：http://www.kuitao8.com/20141213/3351.shtml</span>

以上就介绍了yii2 session的使用方法，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。

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