echo '</tr>'; Will the line breaks in the two outputs not be repeated? I tried it and deleting one can also output normally without any problem.

Question

请问

<?php

echo '<table width="800" border="1">';

$i=0;while($i<10){    

echo '<tr>';$j=0;    

while($j<10){

echo '<td>'.$j.'</td>';        

$j ;    }  

echo '</tr>'; $i ;}

echo '</table>';

?>

Answer 1

echo '<table width="800" border="1">';
$i=0;   
while($i<10){    
      echo '<tr>';
      $j=0;    
      while($j<10){
         echo '<td>'.$j.'</td>';        
         $j++;        
      }  
      echo '</tr>'; 
      $i++;
      }
echo '</table>';

<tr></tr> is a tag pair, a table tag in HTML