Fix warnings about null array keys, fixes #253

Author: Seldaek

templates/download.html.twig

@@ -35,7 +35,7 @@
         To automate the installation, use <a href="/doc/faqs/how-to-install-composer-programmatically.md" title="See the instructions on how to install Composer programmatically" aria-label="See the instructions on how to install Composer programmatically">the guide on installing Composer programmatically</a>.
     </p>
     <pre class="installer">php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
-php -r "if (hash_file('sha384', 'composer-setup.php') === '98d21f7f50ba3c9ea8632443b41b1fd39e163ab51cd5a8c15e9a22b6901f0ced96f1428bf32792154a37cfec1c467174') { echo 'Installer verified'.PHP_EOL; } else { echo 'Installer corrupt'.PHP_EOL; unlink('composer-setup.php'); exit(1); }"
+php -r "if (hash_file('sha384', 'composer-setup.php') === 'c8b085408188070d5f52bcfe4ecfbee5f727afa458b2573b8eaaf77b3419b0bf2768dc67c86944da1544f06fa544fd47') { echo 'Installer verified'.PHP_EOL; } else { echo 'Installer corrupt'.PHP_EOL; unlink('composer-setup.php'); exit(1); }"
 php composer-setup.php
 php -r "unlink('composer-setup.php');"</pre>
 

web/installer

@@ -546,7 +546,7 @@ function out($text, $color = null, $newLine = true)
 
     $format = '%s';
 
-    if (isset($styles[$color]) && USE_ANSI) {
+    if (is_string($color) && isset($styles[$color]) && USE_ANSI) {
         $format = $styles[$color];
     }