PHP and MySQL syntax: Difference between revisions

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   <td> column value of unix timestamp <br /> (the number of seconds since 1970/01/01)</td>
   <td> value of unix timestamp <br /> (the number of seconds since 1970/01/01)</td>
   <td> -2209075200</td>
   <td> -2209075200</td>
   <td> 0</td>
   <td> 0</td>
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   <td> column value of Excel DATEVALUE function <br />  (number of days since 1900/1/1) </td>
   <td> value of Excel DATEVALUE function <br />  (number of days since 1900/1/1) </td>
   <td> 1</td>
   <td> 1</td>
   <td> 25569</td>
   <td> 25569</td>

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