Take advantage of PHP 5.4+ short echo (#2585)

* Take advantage of PHP 5.4+ short echo

https://php.net/migration54.new-features thanks to
https://github.com/FreshRSS/FreshRSS/pull/2495

Use `<?=  ?>` instead of `<?php echo; ?>`
10kB of code saved :-)

Done with regular expression:
```
<\?php echo (.+?);? *\?>
<?= \1 ?>
```

* Try Travis fix

https://github.com/squizlabs/PHP_CodeSniffer/issues/2045#issuecomment-395238272

3 files changed, 56 insertions, 56 deletions

diff --git a/app/views/stats/idle.phtml b/app/views/stats/idle.phtml
index 88c78d465..9421893fb 100644
--- a/app/views/stats/idle.phtml
+++ b/app/views/stats/idle.phtml
@@ -1,9 +1,9 @@
 <?php $this->partial('aside_stats'); ?>
 
 <div class="post">
-	<a href="<?php echo _url('index', 'index'); ?>"><?php echo _t('gen.action.back_to_rss_feeds'); ?></a>
+	<a href="<?= _url('index', 'index') ?>"><?= _t('gen.action.back_to_rss_feeds') ?></a>
 
-	<h1><?php echo _t('admin.stats.idle'); ?></h1>
+	<h1><?= _t('admin.stats.idle') ?></h1>
 
 	<?php
 		$current_url = Minz_Url::display(
@@ -16,21 +16,21 @@
 				$nothing = false;
 	?>
 		<div class="stat">
-			<h2><?php echo _t('gen.date.' . $period); ?></h2>
+			<h2><?= _t('gen.date.' . $period) ?></h2>
 
 			<form id="form-delete" method="post">
-			<input type="hidden" name="_csrf" value="<?php echo FreshRSS_Auth::csrfToken(); ?>" />
+			<input type="hidden" name="_csrf" value="<?= FreshRSS_Auth::csrfToken() ?>" />
 			<?php foreach ($feeds as $feed) { ?>
 			<ul class="horizontal-list">
 				<li class="item">
 					<div class="stick">
-						<a class="btn" href="<?php echo _url('index', 'index', 'get', 'f_' . $feed['id']); ?>"><?php echo _i('link'); ?> <?php echo _t('gen.action.filter'); ?></a>
-						<a class="btn" href="<?php echo _url('subscription', 'index', 'id', $feed['id']); ?>"><?php echo _i('configure'); ?> <?php echo _t('gen.action.manage'); ?></a>
-						<button class="btn btn-attention confirm" form="form-delete" formaction="<?php echo _url('feed', 'delete', 'id', $feed['id'], 'r', $current_url); ?>"><?php echo _t('gen.action.remove'); ?></button>
+						<a class="btn" href="<?= _url('index', 'index', 'get', 'f_' . $feed['id']) ?>"><?= _i('link') ?> <?= _t('gen.action.filter') ?></a>
+						<a class="btn" href="<?= _url('subscription', 'index', 'id', $feed['id']) ?>"><?= _i('configure') ?> <?= _t('gen.action.manage') ?></a>
+						<button class="btn btn-attention confirm" form="form-delete" formaction="<?= _url('feed', 'delete', 'id', $feed['id'], 'r', $current_url) ?>"><?= _t('gen.action.remove') ?></button>
 					</div>
 				</li>
 				<li class="item">
-					<span title="<?php echo timestamptodate($feed['last_date'], false); ?>"><?php echo $feed['name']; ?> (<?php echo _t('admin.stats.number_entries', $feed['nb_articles']); ?>)</span>
+					<span title="<?= timestamptodate($feed['last_date'], false) ?>"><?= $feed['name'] ?> (<?= _t('admin.stats.number_entries', $feed['nb_articles']) ?>)</span>
 				</li>
 			</ul>
 			<?php } ?>
@@ -43,7 +43,7 @@
 		if ($nothing) {
 	?>
 	<p class="alert alert-warn">
-		<span class="alert-head"><?php echo _t('admin.stats.no_idle'); ?></span>
+		<span class="alert-head"><?= _t('admin.stats.no_idle') ?></span>
 	</p>
 	<?php } ?>
 </div>
diff --git a/app/views/stats/index.phtml b/app/views/stats/index.phtml
index 2ff3e6c52..4af197c5b 100644
--- a/app/views/stats/index.phtml
+++ b/app/views/stats/index.phtml
@@ -1,63 +1,63 @@
 <?php $this->partial('aside_stats'); ?>
 
 <div class="post">
-	<a href="<?php echo _url('index', 'index'); ?>"><?php echo _t('gen.action.back_to_rss_feeds'); ?></a>
+	<a href="<?= _url('index', 'index') ?>"><?= _t('gen.action.back_to_rss_feeds') ?></a>
 
-	<h1><?php echo _t('admin.stats.main'); ?></h1>
+	<h1><?= _t('admin.stats.main') ?></h1>
 
 	<div class="stat half">
-		<h2><?php echo _t('admin.stats.entry_repartition'); ?></h2>
+		<h2><?= _t('admin.stats.entry_repartition') ?></h2>
 		<table>
 			<thead>
 				<tr>
 					<th> </th>
-					<th><?php echo _t('admin.stats.main_stream'); ?></th>
-					<th><?php echo _t('admin.stats.all_feeds'); ?></th>
+					<th><?= _t('admin.stats.main_stream') ?></th>
+					<th><?= _t('admin.stats.all_feeds') ?></th>
 				</tr>
 			</thead>
 			<tbody>
 				<tr>
-					<th><?php echo _t('admin.stats.status_total'); ?></th>
-					<td class="numeric"><?php echo format_number($this->repartition['main_stream']['total']); ?></td>
-					<td class="numeric"><?php echo format_number($this->repartition['all_feeds']['total']); ?></td>
+					<th><?= _t('admin.stats.status_total') ?></th>
+					<td class="numeric"><?= format_number($this->repartition['main_stream']['total']) ?></td>
+					<td class="numeric"><?= format_number($this->repartition['all_feeds']['total']) ?></td>
 				</tr>
 				<tr>
-					<th><?php echo _t('admin.stats.status_read'); ?></th>
-					<td class="numeric"><?php echo format_number($this->repartition['main_stream']['count_reads']); ?></td>
-					<td class="numeric"><?php echo format_number($this->repartition['all_feeds']['count_reads']); ?></td>
+					<th><?= _t('admin.stats.status_read') ?></th>
+					<td class="numeric"><?= format_number($this->repartition['main_stream']['count_reads']) ?></td>
+					<td class="numeric"><?= format_number($this->repartition['all_feeds']['count_reads']) ?></td>
 				</tr>
 				<tr>
-					<th><?php echo _t('admin.stats.status_unread'); ?></th>
-					<td class="numeric"><?php echo format_number($this->repartition['main_stream']['count_unreads']); ?></td>
-					<td class="numeric"><?php echo format_number($this->repartition['all_feeds']['count_unreads']); ?></td>
+					<th><?= _t('admin.stats.status_unread') ?></th>
+					<td class="numeric"><?= format_number($this->repartition['main_stream']['count_unreads']) ?></td>
+					<td class="numeric"><?= format_number($this->repartition['all_feeds']['count_unreads']) ?></td>
 				</tr>
 				<tr>
-					<th><?php echo _t('admin.stats.status_favorites'); ?></th>
-					<td class="numeric"><?php echo format_number($this->repartition['main_stream']['count_favorites']); ?></td>
-					<td class="numeric"><?php echo format_number($this->repartition['all_feeds']['count_favorites']); ?></td>
+					<th><?= _t('admin.stats.status_favorites') ?></th>
+					<td class="numeric"><?= format_number($this->repartition['main_stream']['count_favorites']) ?></td>
+					<td class="numeric"><?= format_number($this->repartition['all_feeds']['count_favorites']) ?></td>
 				</tr>
 			</tbody>
 		</table>
 	</div><!--
 
 	--><div class="stat half">
-		<h2><?php echo _t('admin.stats.top_feed'); ?></h2>
+		<h2><?= _t('admin.stats.top_feed') ?></h2>
 		<table>
 			<thead>
 				<tr>
-					<th><?php echo _t('admin.stats.feed'); ?></th>
-					<th><?php echo _t('admin.stats.category'); ?></th>
-					<th><?php echo _t('admin.stats.entry_count'); ?></th>
-					<th><?php echo _t('admin.stats.percent_of_total'); ?></th>
+					<th><?= _t('admin.stats.feed') ?></th>
+					<th><?= _t('admin.stats.category') ?></th>
+					<th><?= _t('admin.stats.entry_count') ?></th>
+					<th><?= _t('admin.stats.percent_of_total') ?></th>
 				</tr>
 			</thead>
 			<tbody>
 				<?php foreach ($this->topFeed as $feed) { ?>
 					<tr>
-						<td><a href="<?php echo _url('stats', 'repartition', 'id', $feed['id']); ?>"><?php echo $feed['name']; ?></a></td>
-						<td><?php echo $feed['category']; ?></td>
-						<td class="numeric"><?php echo format_number($feed['count']); ?></td>
-						<td class="numeric"><?php echo format_number($feed['count'] / $this->repartition['all_feeds']['total'] * 100, 1);?></td>
+						<td><a href="<?= _url('stats', 'repartition', 'id', $feed['id']) ?>"><?= $feed['name'] ?></a></td>
+						<td><?= $feed['category'] ?></td>
+						<td class="numeric"><?= format_number($feed['count']) ?></td>
+						<td class="numeric"><?= format_number($feed['count'] / $this->repartition['all_feeds']['total'] * 100, 1) ?></td>
 					</tr>
 				<?php } ?>
 			</tbody>
@@ -65,18 +65,18 @@
 	</div>
 
 	<div class="stat">
-		<h2><?php echo _t('admin.stats.entry_per_day'); ?></h2>
+		<h2><?= _t('admin.stats.entry_per_day') ?></h2>
 		<div id="statsEntryPerDay" class="statGraph"></div>
 	</div>
 
 	<div class="stat half">
-		<h2><?php echo _t('admin.stats.feed_per_category'); ?></h2>
+		<h2><?= _t('admin.stats.feed_per_category') ?></h2>
 		<div id="statsFeedPerCategory" class="statGraph"></div>
 		<div id="statsFeedPerCategoryLegend"></div>
 	</div>
 
 	<div class="stat half">
-		<h2><?php echo _t('admin.stats.entry_per_category'); ?></h2>
+		<h2><?= _t('admin.stats.entry_per_category') ?></h2>
 		<div id="statsEntryPerCategory" class="statGraph"></div>
 		<div id="statsEntryPerCategoryLegend"></div>
 	</div>
@@ -90,4 +90,4 @@ echo htmlspecialchars(json_encode(array(
 	'entryByCategory' => $this->entryByCategory,
 ), JSON_UNESCAPED_UNICODE), ENT_NOQUOTES, 'UTF-8');
 ?></script>
-<script src="../scripts/stats.js?<?php echo @filemtime(PUBLIC_PATH . '/scripts/stats.js'); ?>"></script>
+<script src="../scripts/stats.js?<?= @filemtime(PUBLIC_PATH . '/scripts/stats.js') ?>"></script>
diff --git a/app/views/stats/repartition.phtml b/app/views/stats/repartition.phtml
index 4bce418c9..7b445a7cc 100644
--- a/app/views/stats/repartition.phtml
+++ b/app/views/stats/repartition.phtml
@@ -1,12 +1,12 @@
 <?php $this->partial('aside_stats'); ?>
 
 <div class="post ">
-	<a href="<?php echo _url('index', 'index'); ?>"><?php echo _t('gen.action.back_to_rss_feeds'); ?></a>
+	<a href="<?= _url('index', 'index') ?>"><?= _t('gen.action.back_to_rss_feeds') ?></a>
 
-	<h1><?php echo _t('admin.stats.repartition'); ?></h1>
+	<h1><?= _t('admin.stats.repartition') ?></h1>
 
 	<select id="feed_select" class="select-change">
-		<option data-url="<?php echo _url('stats', 'repartition')?>"><?php echo _t('admin.stats.all_feeds')?></option>
+		<option data-url="<?= _url('stats', 'repartition') ?>"><?= _t('admin.stats.all_feeds') ?></option>
 	<?php foreach ($this->categories as $category) {
 		$feeds = $category->feeds();
 		if (!empty($feeds)) {
@@ -24,40 +24,40 @@
 	</select>
 
 	<?php if ($this->feed) {?>
-		<a class="btn" href="<?php echo _url('subscription', 'index', 'id', $this->feed->id()); ?>">
-			<?php echo _i('configure'); ?> <?php echo _t('gen.action.manage'); ?>
+		<a class="btn" href="<?= _url('subscription', 'index', 'id', $this->feed->id()) ?>">
+			<?= _i('configure') ?> <?= _t('gen.action.manage') ?>
 		</a>
 	<?php }?>
 
 	<div class="stat">
 		<table>
 		<tr>
-			<th><?php echo _t('admin.stats.status_total'); ?></th>
-			<th><?php echo _t('admin.stats.status_read'); ?></th>
-			<th><?php echo _t('admin.stats.status_unread'); ?></th>
-			<th><?php echo _t('admin.stats.status_favorites'); ?></th>
+			<th><?= _t('admin.stats.status_total') ?></th>
+			<th><?= _t('admin.stats.status_read') ?></th>
+			<th><?= _t('admin.stats.status_unread') ?></th>
+			<th><?= _t('admin.stats.status_favorites') ?></th>
 		</tr>
 		<tr>
-			<td class="numeric"><?php echo $this->repartition['total']; ?></td>
-			<td class="numeric"><?php echo $this->repartition['count_reads']; ?></td>
-			<td class="numeric"><?php echo $this->repartition['count_unreads']; ?></td>
-			<td class="numeric"><?php echo $this->repartition['count_favorites']; ?></td>
+			<td class="numeric"><?= $this->repartition['total'] ?></td>
+			<td class="numeric"><?= $this->repartition['count_reads'] ?></td>
+			<td class="numeric"><?= $this->repartition['count_unreads'] ?></td>
+			<td class="numeric"><?= $this->repartition['count_favorites'] ?></td>
 		</tr>
 		</table>
 	</div>
 
 	<div class="stat">
-		<h2><?php echo _t('admin.stats.entry_per_hour', $this->averageHour); ?></h2>
+		<h2><?= _t('admin.stats.entry_per_hour', $this->averageHour) ?></h2>
 		<div id="statsEntryPerHour" class="statGraph"></div>
 	</div>
 
 	<div class="stat half">
-		<h2><?php echo _t('admin.stats.entry_per_day_of_week', $this->averageDayOfWeek); ?></h2>
+		<h2><?= _t('admin.stats.entry_per_day_of_week', $this->averageDayOfWeek) ?></h2>
 		<div id="statsEntryPerDayOfWeek" class="statGraph"></div>
 	</div>
 
 	<div class="stat half">
-		<h2><?php echo _t('admin.stats.entry_per_month', $this->averageMonth); ?></h2>
+		<h2><?= _t('admin.stats.entry_per_month', $this->averageMonth) ?></h2>
 		<div id="statsEntryPerMonth" class="statGraph"></div>
 	</div>
 </div>
@@ -71,4 +71,4 @@ echo htmlspecialchars(json_encode(array(
 	'months' => $this->months,
 ), JSON_UNESCAPED_UNICODE), ENT_NOQUOTES, 'UTF-8');
 ?></script>
-<script src="../scripts/repartition.js?<?php echo @filemtime(PUBLIC_PATH . '/scripts/repartition.js'); ?>"></script>
+<script src="../scripts/repartition.js?<?= @filemtime(PUBLIC_PATH . '/scripts/repartition.js') ?>"></script>