count the rows based on array object - php

Question

I want to count the rows based on like and unlike value in an array.I want to count the rows based on like and unlike value.I need to display like:3 and unlike:1.Now it display like:0,unlike:0 '$content' value is either {"userid":"1","like":"1"} or {"userid":"1","unlike":"1"}
$like_count = 0;
$unlike_count = 0;
while($like_fet = mysql_fetch_assoc($query))
{
$content = $like_fet['CONTENT_VALUE'];
$datas = json_decode($content);
foreach($datas as $item)
{
$like = $item['like'];
$unlike = $item['unlike'];
if($like != '' && $unlike == '')
{
echo "like";
$like_count++;
}
if($unlike != '' && $like == '')
{
echo "unlike";
$unlike_count++;
}
}
}

Answer 1

$like_count=0;
$unlike_count=0;
while($like_fet=mysql_fetch_assoc($query)) {
$json = json_decode($like_fet['CONTENT_VALUE'], true);
if ( isset($json['like']) ) {
$like_count += $json['like'];
}
if ( isset($json['unlike']) ) {
$unlike_count += $json['unlike'];
}
}
depending on how CONTENT_VALUE actually works this can probably simplified to
$like_count=0;
$unlike_count=0;
while($like_fet=mysql_fetch_assoc($query)) {
$json = json_decode($like_fet['CONTENT_VALUE'], true);
if ( isset($json['like']) ) {
$like_count++;
}
else if ( isset($json['unlike']) ) {
$unlike_count++;
}
else {
trigger_error('CONTENT_VALUE without like/unlike element', E_USER_NOTICE);
}
}