title: Syntax errors when installing Composer?
body: <p>I have tried to start installing composer using each of these</p>
  
  <p><code>sudo -u myuser curl -sS https://getcomposer.org/installer | php</code></p>
  
  <p><code>sudo -u myuser curl -s https://getcomposer.org/installer | php -- --check</code></p>
  
  <p>But both give me </p>
  
  <pre><code>Warning: Unexpected character in input:  '\' (ASCII=92) state=1 in - on line 381
  
  Warning: Unexpected character in input:  '\' (ASCII=92) state=1 in - on line 386
  
  Warning: Unexpected character in input:  '\' (ASCII=92) state=1 in - on line 402
  
  Warning: Unexpected character in input:  '\' (ASCII=92) state=1 in - on line 640
  
  Warning: Unexpected character in input:  '\' (ASCII=92) state=1 in - on line 688
  
  Parse error: syntax error, unexpected T_SL in - on line 814
  </code></pre>
  
  <p>Anyone seen this before?</p>
  
  <p>I'm running Linux 3.1.9-vs2.3.2.5vs2.3.2.5+  and PHP 5.2.17 (cli)</p>