PHP计数器在while循环中递增 [英] PHP counter increment in a while loop
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问题描述
我在一个while循环中增加一个计数器时遇到问题,基本上我只想在数据库中获取的两个图像链接之间交替,但是我的计数器不会增加,而且我不确定为什么有人可以帮助吗?
Im having a problem incrementing a counter in one of my while loops basically i just want to alternate between two image links that were fetched in my database but my counter wont increase and im not sure why can anyone help?
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$img_link = $row['Image'];
$img_link_alt = $row['Image_alt'];
$i = 0;
echo '<div class="col-xs-6 col-sm-3 placeholder">';
$img = ( $i % 2 == 0 ) ? $img_link : $img_link_alt;
echo $i;
//'?' . date("h:i:sa").'
echo '<img style="height:200px; border-radius:0%; width:300px;" src="screenshots/'. $img . '">';
echo '<h4>Screenshot</h4><span class="text-muted">Updated Screenshot of the Botting session: <b>' . $row['script_name'] .' </b></span>';
echo '</div>';
$i++;
}
我什至尝试在while循环之外声明$ i,但仍然一无所获.....任何帮助将不胜感激
Ive even tried declaring $i outside of the while loop and still nothing..... any help would be much appreciated
推荐答案
在循环外初始化$ i.
Initialize $i outside the loop.
$i = 0;
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$img_link = $row['Image'];
$img_link_alt = $row['Image_alt'];
echo '<div class="col-xs-6 col-sm-3 placeholder">';
$img = ( $i % 2 == 0 ) ? $img_link : $img_link_alt;
echo $i;
//'?' . date("h:i:sa").'
echo '<img style="height:200px; border-radius:0%; width:300px;" src="screenshots/'. $img . '">';
echo '<h4>Screenshot</h4><span class="text-muted">Updated Screenshot of the Botting session: <b>' . $row['script_name'] .' </b></span>';
echo '</div>';
$i++;
}
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