CODEWITHSUNDEEP
phpstringfor-loop
Jordan Merrill
Jordan Merrill

Reputation: 35

How to repeat a dynamic string in PHP

I have a dynamic created by PHP which produces different squares with unique sizes and colors. Now, I want to output 100 of these squares to appear on the screen.

I have tried to put my code in a for loop but it does not work:

<?php 
$random_number = rand(10,100);
$color_array=array("yellow"=>"0","red"=>"1","green"=>"2","blue"=>"3","black"=>"4","brown"=>"5", "gray"=>"6");
$random_color = array_rand($color_array,1);
$x= '<div style="width:' . $random_number . 'px;height:' . $random_number . 'px;background-color:' . $random_color . '">';
for ($i = 0; $i <= 100; $i++) {
    echo $x;
}
?>

There are no error messages, but only one square appears instead of 100.

Upvotes: 0

Views: 160

Answers (2)

Lucas Meine
Lucas Meine

Reputation: 1619

Your variables $random_number, $random_color and $x must be redeclared inside your loop. The reason why you were seeing only one div its because you forgot to close it. It was still generating them but inside one another. 

<?php

$color_array=array("yellow"=>"0","red"=>"1","green"=>"2","blue"=>"3","black"=>"4","brown"=>"5", "gray"=>"6");

for ($i = 0; $i <= 100; $i++) {
  $random_number = rand(10,100);  
  $random_color = array_rand($color_array,1);
  $x= '<div style="width:' . $random_number . 'px;height:' . $random_number . 'px;background-color:' . $random_color . '"></div>';
  echo $x;
}
?>

Otherwise you will only echo the same thing over and over again.

Upvotes: 2

Angel Deykov
Angel Deykov

Reputation: 1227

<?php
        $color_array=array("yellow"=>"0","red"=>"1","green"=>"2","blue"=>"3","black"=>"4","brown"=>"5", "gray"=>"6");

        for ($i = 0; $i <= 100; $i++) {
          echo '<div style="width:' . rand(10,100) . 'px;height:' . rand(10,100) . 'px;background-color:' . array_rand($color_array,1) . '"></div></br>';
        }
?>

Upvotes: -1

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