PHP多维数组 [英] PHP Multi dimentional array

问题描述

这是我的代码。我不知道它为什么不起作用。
我试图用php for循环打印我的表格，但没有在网站上显示。

文档： foreach

This is my code. I don't know why it is not working. I was trying to print my table with php for loop, but nothing shows up on the website.Nothing

This is the two-dimentional array that I was trying to print out.

 <!--Arrays of weapons-->
 <?php
 $weapons = array(
 array("M4A1",1,78906,"TUCKER, LISBETH","SPC"),
 array("M4A1",2,78915,"HATHAWAY, HANNAH","1LT"),
 array("M4A1",3,78933,"HARRIS, LEE","SFC"),
 array("M4A1",4,78934,"WELCH, BRAD","SSG"),
 array("M9",1,1167552,"BLAND, MARGARET","CPT"),
 array("M249",1,101032,"TYSON, MICHELLE","1SG"),
 array("M249",2,101038,"MEDINA, TOBIAS","SPC"),
 array("M240B",1,104104,"COSTA, JOSHUA","SSG"),
 array("M2A1",1,1863848,"GARCIA, RIGOBERTO","SSG"),
 array("MK-19",1,19369,"NEUPANE, KISHOR","SPC")
 );
 ?>

This is the code that I was trying to use to print out.

<!--Create the Weapons List Table-->
 <table border ="1">
 <tr>
  <th>Type</th>
  <th>Buttstock #</th>
  <th>Serial #</th>
  <th>Name</th>
  <th>Rank</th>
 </tr>
 <!--Put two-dimentinal arrays in the table-->
 <?php foreach ($row = 0; $row < 10, $row++) {?>
  <tr>
  <?php for ($col = 0; $col < 5, $col++) {?>
   <td><?php echo $weapons[$row][$col];?></td>
  <?php }?>
  </tr>
  <?php }?>
 </table>

解决方案

You have to use foreach as foreach (array_expression as $value)

The foreach construct provides an easy way to iterate over arrays. foreach works only on arrays and objects, and will issue an error when you try to use it on a variable with a different data type or an uninitialized variable.

Like:

<?php
$weapons = array(
 array("M4A1",1,78906,"TUCKER, LISBETH","SPC"),
 array("M4A1",2,78915,"HATHAWAY, HANNAH","1LT"),
 array("M4A1",3,78933,"HARRIS, LEE","SFC"),
 array("M4A1",4,78934,"WELCH, BRAD","SSG"),
 array("M9",1,1167552,"BLAND, MARGARET","CPT"),
 array("M249",1,101032,"TYSON, MICHELLE","1SG"),
 array("M249",2,101038,"MEDINA, TOBIAS","SPC"),
 array("M240B",1,104104,"COSTA, JOSHUA","SSG"),
 array("M2A1",1,1863848,"GARCIA, RIGOBERTO","SSG"),
 array("MK-19",1,19369,"NEUPANE, KISHOR","SPC")
);
?>

<table border ="1">
     <tr>
      <th>Type</th>
      <th>Buttstock #</th>
      <th>Serial #</th>
      <th>Name</th>
      <th>Rank</th>
     </tr>
     <!--Put two-dimentinal arrays in the table-->
     <?php foreach ($weapons as $weapon) {?>
      <tr>
          <?php foreach ( $weapon as $val ) {?>
           <td><?php echo $val;?></td>
          <?php }?>
      </tr>
      <?php }?>
</table>

This will result to:

Doc: foreach

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