php - Composer does not install -

php - Composer does not install -

i trying running laravel in computer, have difficults install resource in machine, follow below little bit of error in terminal of linux

all settings right using composer downloading... not create file /var/www/html/composer.phar: fopen(/var/www/html/composer.phar): failed open stream: permission denied download failed: fopen(/var/www/html/composer.phar): failed open stream: permission denied fwrite() expects parameter 1 resource, boolean given downloading... not create file /var/www/html/composer.phar: fopen(/var/www/html/composer.phar): failed open stream: permission denied download failed: fopen(/var/www/html/composer.phar): failed open stream: permission denied fwrite() expects parameter 1 resource, boolean given downloading... not create file /var/www/html/composer.phar: fopen(/var/www/html/composer.phar): failed open stream: permission denied download failed: fopen(/var/www/html/composer.phar): failed open stream: permission denied fwrite() expects parameter 1 resource, boolean given download failed repeatedly, aborting. alexander@alexander:/var/www/html$

i used sudo follows:

sudo curl -ss https://getcomposer.org/installer | sudo php

php linux composer-php