从php中的多维数组中删除最后一个元素

问题描述：

I have a textbox that iterates 5 times and displays values from the textbox into an array.

<form method="post" action="test.php">   
 <?php for($i = 0; $i < 5; $i++) { 
     echo "<input type='text' name='text1[]'/>";    
  } ?>
<input type="submit" name="confirm" value="confirm" />
</form>


<?php
  $text1 = $_POST['text1'];
  $count= count($text1);
  if(isset($_POST['confirm'])) { 
    for($p = 0; $p < $count; $p++) {
       echo print_r($p[$i]);
    }
  }
?>

I want to remove the last value (which is that repeating number 1) from the data and only display the names. The output of above is as follows:-

John1
Jack1
Peter1
Jane1
Jill1

我有一个迭代5次的文本框，并将文本框中的值显示为数组。 p> ＆lt; form method =“post”action =“test.php”＆gt; ＆lt;？php for（$ i = 0; $ i＆lt; 5; $ i ++）{ echo“＆lt; input type ='text'name ='text1 []'/＆gt;”; }？＆gt; ＆lt; input type =“submit”name =“confirm”value =“confirm”/＆gt; ＆lt; / form＆gt; ＆lt;？php $ text1 = $ _POST ['text1']; $ count = count（$ text1）; if（isset（$ _ POST ['confirm']））{ for（$ p = 0; $ p＆lt; $ count; $ p ++）{ echo print_r（$ p [$ i]）; } } ？＆gt; code> pre>

我想删除最后一个数据中的值（重复数字1），仅显示名称。上面的输出如下： - p>


  John1 
Jack1 
Peter1 
Jane1 
Jill1 
  code>  pre> 
  div>

答

echo print_r($p[$i]);

print_r prints content of $p[$i] and returns 1 that is passed to echo (and printed next to desired output). You don't need print_r here.

答

print_r sends $p[$i] to the output buffer and then it returns a boolean result, which will be true (or 1 when echoed out).

So, the solution is simply to not use print_r.

Always read the documentation when you are unsure about something. Pretty much anything you want to know about PHP can be found there.

从php中的多维数组中删除最后一个元素

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