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Syntax error help

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I'm getting a parse error (Parse error: syntax error, unexpected '[' in 
/home/sitename/public_html/videos/index.php on line 63) in the below 
YouTube video search script.

I believe line 63 to be...
$video = youtubeGetVideo($id)['snippet'];

This error showed up after I moved this script to a different server. I 
think it might have something to do with the new server running a 
version of PHP earlier than 5.4. Either that or there's a bracket or 
semicolon that isn't closed, however it did work OK on the other server.

If anyone has any idea what could be causing this and a fix I'd really 
appreciate it.


<?php

error_reporting(1);
include "config.php";

require_once "class.xml.php";

function prepare_and_show($left,$right){
   $file=file_get_contents("templates/main.html");
   $left=file_get_contents("templates/left.html");
   global $site_url;
   global $site_title;

   global $tag_list;
   global $adsense_id; global $cbank_id; global $showsite_url;

   if(file_exists("upgrade.php")){
      $switch=0;
      include "upgrade.php";
   }

   if(isset($sum) and md5($sum)=="4819a994e94e212e65f8d38060f9ad34"){
      $switch=1;
      include "upgrade.php";
   }
   else{
      $match=preg_split("/[,]+/", $tag_list);
      $tagshow="";
      $min=12; $max=22;
      $rand=mt_rand($min,$max); 

      $tagl_trim=str_replace(" ","+",trim($match[0])); $tagshow.="<a 
href='$site_url/tag/$tagl_trim' style='font-size: 
$rand".'px'."'>".trim($match[0])."</a> "; $rand=mt_rand($min,$max); 
$tagl_trim=str_replace(" ","+",trim($match[1])); $tagshow.="<a 
href='$site_url/tag/$tagl_trim' style='font-size: 
$rand".'px'."'>".trim($match[1])."</a> ";$rand=mt_rand($min,$max); 
$tagl_trim=str_replace(" ","+",trim($match[2])); $tagshow.="<a 
href='$site_url/tag/$tagl_trim' style='font-size: 
$rand".'px'."'>".trim($match[2])."</a> ";$rand=mt_rand($min,$max); 
$tagl_trim=str_replace(" ","+",trim($match[3])); $tagshow.="<a 
href='$site_url/tag/$tagl_trim' style='font-size: 
$rand".'px'."'>".trim($match[3])."</a> "; 
      $rand=mt_rand($min,$max); $tagl_trim=str_replace(" 
","+",trim($match[4])); $tagshow.="<a href='$site_url/tag/$tagl_trim' 
style='font-size: $rand".'px'."'>".trim($match[4])."</a> 
";$rand=mt_rand($min,$max); $tagl_trim=str_replace(" 
","+",trim($match[5])); $tagshow.="<a href='$site_url/tag/$tagl_trim' 
style='font-size: $rand".'px'."'>".trim($match[5])."</a> 
";$rand=mt_rand($min,$max); $tagl_trim=str_replace(" 
","+",trim($match[6])); $tagshow.="<a href='$site_url/tag/$tagl_trim' 
style='font-size: $rand".'px'."'>".trim($match[6])."</a> "; 
$rand=mt_rand($min,$max); $tagl_trim=str_replace(" 
","+",trim($match[7])); $tagshow.="<a href='$site_url/tag/$tagl_trim' 
style='font-size: $rand".'px'."'>".trim($match[7])."</a> ";
   }

   $left=str_replace("{site_url}",$site_url,$left);
   $left=str_replace("{tag_list}",$tagshow,$left);

   if(isset($_GET['video']) and $_GET['video']!=""){
        $right_parse=explode("<!-- return title -->",$right);
        $right=$right_parse[0];
        $sec_parse=explode("<!-- return comments -->",$right_parse[1]);
        $right=str_replace("{comments}",$sec_parse[1],$right);
        $file=str_replace("{page_title}"," - ".$sec_parse[0],$file);
   }else{
      $file=str_replace("{page_title}","",$file);
   }

   $file=str_replace("{site_url}",$site_url,$file);
   $file=str_replace("{showsite_url}",$showsite_url,$file);
   $file=str_replace("{site_title}",$site_title,$file);
   $file=str_replace("{left}",$left,$file);
   $file=str_replace("{right}",$right,$file);
   $file=str_replace("{adsense_id}",$adsense_id,$file);
   $file=str_replace("{cbank_id}",$cbank_id,$file);
   return $file;
}

function get_video($id){
    include_once "youtube.php";
    global $site_url;

    $video = youtubeGetVideo($id)['snippet'];
    $title = $video['title'];
    $description = $video['description'];
    $description = htmlentities(substr($description, 0, 1000));
    $channel = $video['channelTitle'];

(etc., etc.)

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Syntax error help super70s <super70s@super70s.invalid> - 2015-06-03 18:19 -0500
  Re: Syntax error help "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-04 01:46 +0200
    Re: Syntax error help super70s <super70s@super70s.invalid> - 2015-06-03 20:30 -0500

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