PHP code sharing for date addition and subtraction calculations

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date_default_timezone_set('PRC'); //Default time zone<p class="line number3 index2 alt2" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"><code class="php spaces" style="font-size:1em;font-family:Consolas, &#39;Bitstream Vera Sans Mono&#39;, &#39;Courier New&#39;, Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;"> echo "Today:",date( "Y-m-d",time()),"\n";

echo "Today:",date( "Y-m-d",strtotime("18 june 2008")), "\n";

echo "Yesterday:",date( "Y-m-d",strtotime("-1 day")), "\n";

echo "Tomorrow:",date( "Y-m-d",strtotime("+1 day")), "\n";

echo "One week later:",date("Y-m-d",strtotime("+1 week")),"\n";

echo "One week, two days, four hours and two seconds later:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "\n";

echo "Next Thursday:",date("Y-m-d",strtotime("next Thursday")),"\n";

echo "Last Monday:".date("Y-m-d",strtotime("last Monday"))."\n";

echo "One month ago:".date("Y-m-d",strtotime("last month"))."\n";

echo "One month later:".date("Y-m-d",strtotime("+1 month"))."\n";

echo "Ten years later:".date("Y-m-d",strtotime("+10 year"))."\n";

?></p> </td> </tr></tbody></table> <p style="margin-top:10px;margin-bottom:10px;color:rgb(51,51,51);"><strong><br>Run result: </strong></p> <table border="0" style="background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-size:1em;min-height:auto;"><tbody style="background:none;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;"><tr style="background:none;border-top:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;" class="firstRow"> <td class="gutter" style="vertical-align:baseline;background:none;border-width:0px;float:none;margin:0px;padding:0px;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-size:1em;min-height:auto;color:rgb(175,175,175);"> <p class="line number1 index0 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">1</p> <p class="line number2 index1 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">2</p> <p class="line number3 index2 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">3</p> <p class="line number4 index3 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">4</p> <p class="line number5 index4 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">5</p> <p class="line number6 index5 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">6</p> <p class="line number7 index6 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">7</p> <p class="line number8 index7 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">8</p> <p class="line number9 index8 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">9</p> <p class="line number10 index9 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">10</p> <p class="line number11 index10 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">11</p> </td> <td class="code" style='vertical-align: baseline; background: none; border-width: 0px; float: none; margin: 0px; padding: 0px; font-family: Consolas, "Bitstream Vera Sans Mono", "Courier New", Courier, monospace; font-size: 1em; min-height: auto; word-break: break-all;'> <p class="container" style="background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;"><br></p> <p class="line number1 index0 alt2" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"><code class="bash plain" style="font-size:1em;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;color:#000000;">Today: 2017-11-06

Today: 2008-06-18

##Yesterday: 2017-11- 05

<p class="line number11 index10 alt2" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"><code class="bash plain" style="font-size:1em;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;color:#000000;">Ten years later: 2027-11-06

#

​ //Default time zone

​​ date_default_timezone_set('PRC');

    echo "Today: ", date( 'Y-m-d H:i:s'), "\n";        // Output the current time

    echo "Tomorrow: ", date( 'Y-m-d H:i:s', strtotime('+1 day')), "\n";           //Output tomorrow’s time

                         <p class="line number8 index7 alt1" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"><code class="php spaces" style="font-size:1em;font-family:Consolas, &#39;Bitstream Vera Sans Mono&#39;, &#39;Courier New&#39;, Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;"> //strtotime can accept the second parameter, the type timestamp is the specified date

    echo date('Y-m-d H:i:s', strtotime ("+1 day", strtotime('2017-11-11'))), "\n";

// +1 day here can modify parameter 1 to whatever you want The number

// day can also be changed to year (year) month (month) hour (hour) minute (minute) second (second)

    echo date('Y-m-d H:i:s', strtotime("+1 day +1 hour +1 minute")), "\n";

?></p> </td> </tr></tbody></table> <p style="margin-top:10px;margin-bottom:10px;color:rgb(51,51,51);">Run results:</p> <p style="margin-top:10px;margin-bottom:10px;color:rgb(51,51,51);"><span style="color:rgb(0,0,255);">Today: 2017-11-06 18:58:04<br>Tomorrow: 2017-11-07 18:58:04<br>2017-11-12 00:00:00<br>2017-11-07 19:59:04</span></p> <p style="margin-top:10px;margin-bottom:10px;color:rgb(51,51,51);"> </p> <p style="margin-top:10px;margin-bottom:10px;color:rgb(51,51,51);"><span style="color:rgb(178,34,34);"><strong>PHP Advanced Calculation of Date and Time Difference</strong></span></p> <p class="syntaxhighlighter php" style="margin:1em 0px;font-size:1em;"><br></p> <table border="0" style="background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-size:1em;min-height:auto;"><tbody style="background:none;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;"><tr style="background:none;border-top:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;" class="firstRow"> <td class="gutter" style="vertical-align:baseline;background:none;border-width:0px;float:none;margin:0px;padding:0px;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-size:1em;min-height:auto;color:rgb(175,175,175);">##1<p class="line number1 index0 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>2<p class="line number2 index1 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>3<p class="line number3 index2 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>4 <p class="line number4 index3 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>5<p class="line number5 index4 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>6<p class="line number6 index5 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>7<p class="line number7 index6 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>8<p class="line number8 index7 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>9<p class="line number9 index8 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>10<p class="line number10 index9 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>11<p class="line number11 index10 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p>12<p class="line number12 index11 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"></p> <p class="line number13 index12 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">13</p> <p class="line number14 index13 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">14</p> <p class="line number15 index14 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">15</p> <p class="line number16 index15 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">16</p> <p class="line number17 index16 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">17</p> <p class="line number18 index17 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">18</p> <p class="line number19 index18 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">19</p> <p class="line number20 index19 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">20</p> <p class="line number21 index20 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">21</p> <p class="line number22 index21 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">22</p> <p class="line number23 index22 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">23</p> <p class="line number24 index23 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">24</p> <p class="line number25 index24 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">25</p> <p class="line number26 index25 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">26</p> <p class="line number27 index26 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">27</p> <p class="line number28 index27 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">28</p> <p class="line number29 index28 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">29</p> <p class="line number30 index29 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">30</p> <p class="line number31 index30 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">31</p> <p class="line number32 index31 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">32</p> <p class="line number33 index32 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">33</p> <p class="line number34 index33 alt1" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">34</p> <p class="line number35 index34 alt2" style="background-image:none;border-width:0px 3px 0px 0px;border-right-style:solid;border-right-color:rgb(108,226,108);float:none;margin:0px;padding:0px .5em 0px 1em;text-align:right;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">35</p> </td> <td class="code" style="vertical-align:baseline;background:none;border-width:0px;float:none;margin:0px;padding:0px;font-family:Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace;font-size:1em;min-height:auto;"> <p class="container" style="background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;font-size:1em;min-height:auto;"><br></p> <p class="line number1 index0 alt2" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;">##<?php<code class="php plain" style="font-size:1em;font-family:Consolas, &#39;Bitstream Vera Sans Mono&#39;, &#39;Courier New&#39;, Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;color:#000000;">

//Default time zone<p class="line number3 index2 alt2" style="background-image:none;border:0px;float:none;margin:0px;padding:0px 1em;vertical-align:baseline;font-size:1em;min-height:auto;white-space:pre;"><code class="php spaces" style="font-size:1em;font-family:Consolas, &#39;Bitstream Vera Sans Mono&#39;, &#39;Courier New&#39;, Courier, monospace;background:none;border:0px;float:none;margin:0px;padding:0px;vertical-align:baseline;min-height:auto;"> date_default_timezone_set('PRC');

echo date("Y-m-d H:i:s"), "\ n";

// Date and day addition function

    echo date('Y-m-d', strtotime('+1 day', strtotime('2016-09-12'))), "\n\n";

    echo strtotime('2016-09-12'), "\n";

    echo date("Y-m-d", '1473609600'), "\n";

echo date("Y-m-d", ' 1573609600'), "\n";

​ // Date and day addition function

    $d = "2016-09-12 10:12:20";

echo date("Y-m-d", strtotime ("$d +1 day")), "\n\n";

//Convert date to time

                                                                                                                       #$year=((int)substr("$d"

,0, 4)); //Obtained year

       $month=((int)substr("$d",5,2)); //Get the month

        $day=( (int)substr("$d",8,2)); //Get the number Number

        return mktime(0,0,0,$month,$day,$year);

    }

    echo date2time("2016-09-12"), "\n\n";

    $date_1="2066-09-12";

    $date_2="2016-09-12";

    $Date_List_a1=explode("-",$date_1);

    $Date_List_a2=explode("-",$date_2);

    $d1=mktime(0,0,0,$Date_List_a1[1],$Date_List_a1[2],$Date_List_a1[0]);

    $d2=mktime(0,0,0,$Date_List_a2[1],$Date_List_a2[2],$Date_List_a2[0]);

    $Days=round(($d1 -$d2)/3600/24);

##​ echo "$date_2 -> $date_1 difference: $Days days", "\n";

?>

2017-11-06 19:13:02

##2016-09-13

1473609600

2016-09-12

2019-11-13

2016- 09-13

1473609600

2066-09-12 -> 2016- 09-12 Difference: 18262 days