PHP time

When using date and time, one disadvantage is that the time cannot be adjusted according to the time zone. Starting from PHP5.2, you can use the datetime class for construction. Its construction method requires two parameters, the first is the timestamp, and the other is Time zone (datetimezone).

<code><span><span><?php</span><span>//可以从服务器获取时区信息</span><span>$timeZone</span> =  ini_get(<span>'date.timezone'</span>);
<span>$dtz</span> = <span>new</span> DateTimeZone(<span>$timeZone</span>);
<span>//可以使用now表示当前时间</span><span>$dt</span> = <span>new</span> DateTime(<span>"now"</span>,<span>$dtz</span>);
<span>//format进行格式化时间</span><span>echo</span><span>"data : "</span>.<span>$dt</span>->format(<span>"Y-m-d  h:i:s"</span>);</span></span></code>

<code><span>//同样也可以使用diff()获得两个时间的时间差</span><span>$start_time</span><span>=</span><span>new</span> DateTime(<span>"2016-7-9 22:00:00"</span>,<span>$dtz</span>);
<span>$difference</span><span>=</span><span>$start_time</span><span>-></span>diff(<span>$dt</span>);
echo <span>$difference</span><span>-></span>format(<span>'%y-%m-%d %h:%i:%s'</span>);
<span>//</span><span>data</span> : <span>2016</span><span>-</span><span>07</span><span>-</span><span>10</span><span>12</span>:<span>55</span>:<span>36</span><span>0</span><span>-</span><span>0</span><span>-</span><span>0</span><span>2</span>:<span>55</span>:<span>36</span></code>

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The above has introduced the time of PHP, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.