It seems like there are some PHP errors in my code where the index variable is not set. How could I fix it?
Fill About.php
<?php
// Template Name: About
?>
<?php get_header();?>
<?php if(have_posts()): ?>
<?php while(have_posts()): the_post(); ?>
<?php
$args = array(
'post_parent' => $post->ID,
'post_type' => 'page',
'numberposts' => -1,
'post_status' => 'publish',
'orderby' => 'menu_order',
'order' => 'ASC',
);
$subPages = get_children( $args );
$benefits = get_posts(array(
'post_type' => 'benefit',
'numberposts' => 3,
'orderby' => 'menu_order',
'order' => 'ASC',
));
$members = get_posts(array(
'post_type' => 'member',
'numberposts' => -1,
'orderby' => 'menu_order',
'order' => 'ASC',
));
?>
<main class="content">
<section class="about parallax">
<div data-depth="0.30" class="about-bg-mob-1 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/benefits-img.svg" alt=""/></div>
<div data-depth="0.60" class="about-bg-mob-2 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-6.svg" alt=""/></div>
<div data-depth="0.40" class="about-bg-mob-3 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-6.svg" alt=""/></div>
<div data-depth="0.30" class="about-bg-mob-4 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-3.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-mob-5 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-4.svg" alt=""/></div>
<div data-depth="0.20" class="about-bg-1 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-1.svg" alt=""/></div>
<div data-depth="0.30" class="about-bg-2 layer"><img src="<?=TDIR?>/assets/dist/s/images/tmp_file/small-img-5.png" alt=""/></div>
<div data-depth="0.40" class="about-bg-3 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-2.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-10 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-6.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-11 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-3.svg" alt=""/></div>
<div class="container">
<div data-depth="0.50" class="about-bg-4 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-3.svg" alt=""/></div>
<div data-depth="0.60" class="about-bg-5 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-4.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-6 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-6.svg" alt=""/></div>
<?php if (!empty($subPages)): ?>
<?php foreach ($subPages as $page): ?>
<div class="row <?php if ( ($index + 1) == count($subPages)): ?> mb-160 <?php else: ?> mb-37 <?php endif ?>">
<?php if ($index == 1): ?>
<div data-depth="0.30" class="about-bg-mob-6 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/customer-bg-3.svg" alt=""/></div>
<div data-depth="0.50" class="about-bg-mob-7 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/h-img.svg" alt=""/></div>
<div data-depth="0.40" class="about-bg-mob-8 layer layer-mob"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-8.svg" alt=""/></div>
<div data-depth="0.60" class="about-bg-7 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/customer-bg-3.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-8 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/h-img.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-9 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-8.svg" alt=""/></div>
<?php endif ?>
<div class="col-md-7 <?php if ($index % 2 == 0): ?> col-md-push-5 col-sm-12 col-sm-push-0 <?php endif ?> ">
<div class="about-img <?php if ($index % 2 != 0): ?> right <?php endif ?>">
<?php if (has_post_thumbnail($page->ID)): ?>
<img <?php if ($index % 2 == 0): ?> style="float: right;" <?php endif ?> src="<?=get_the_post_thumbnail_url($page->ID, 'full')?>" alt=""/>
<?php endif ?>
</div>
</div>
<div class="col-md-5 <?php if ($index % 2 == 0): ?> col-md-pull-7 col-sm-12 col-sm-pull-0 <?php endif ?>">
<div class="about-txt <?php if ($index % 2 != 0): ?> right <?php endif ?>">
<div class="about-txt__h font-1">
<h3><?=__($page->post_title)?></h3>
</div>
<div class="about-txt__desc font-2">
<p><?=__($page->post_content)?></p>
</div>
</div>
</div>
</div>
<?php $index ++; ?>
<?php endforeach ?>
<?php endif ?>
<div class="row">
<?php if (!empty($benefits)): ?>
<?php foreach ($benefits as $benefit): ?>
<div class="col-sm-4">
<div class="about-item">
<div class="about-item__h font-1">
<h3><?=__($benefit->post_title)?></h3>
</div>
<div class="about-item__desc">
<p><?php echo apply_filters( 'the_content', $benefit->post_content ); ?></p>
</div>
</div>
</div>
<?php endforeach ?>
<?php endif ?>
</div>
<div class="row">
<div class="col-md-12">
<div class="about__h font-1">
<h2><?=__('Our Team','plaza')?></h2>
</div>
</div>
</div>
<div class="row special-align">
<div data-depth="0.70" class="about-bg-12 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/popular-small-bg-3.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-13 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-6.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-14 layer"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-3.svg" alt=""/></div>
<div data-depth="0.70" class="about-bg-15 layer">
<div class="img"><img src="<?=TDIR?>/assets/dist/s/images/useful/svg/theme/small-img-2.svg" alt=""/></div>
</div>
<?php if (!empty($members)): ?>
<?php foreach ($members as $member): ?>
<div class="col-sm-3">
<div class="about-team">
<div class="about-team__img">
<?php if (has_post_thumbnail($member->ID)): ?>
<img src="<?=get_the_post_thumbnail_url($member->ID, 'large')?>" alt=""/>
<?php endif ?>
</div>
<div class="about-team__h font-1">
<h3><?=__($member->post_title)?></h3>
</div>
<div class="about-team__desc">
<p><?=nl2br(__($member->post_excerpt))?></p>
</div>
</div>
</div>
<?php endforeach ?>
<?php endif ?>
</div>
</div>
</section>
</main>
<?php endwhile ?>
<?php endif ?>
<?php get_footer(); ?>
Errors I get Notice: Undefined variable: index in /home/r328061/koopia/wp-content/themes/plaza/about.php on line 51 Notice: Undefined variable: index in /home/r328061/koopia/wp-content/themes/plaza/about.php on line 62 style=”float: right;” src=”Picture URL” alt=””/>
Notice: Undefined variable: index in /home/r328061/koopia/wp-content/themes/plaza/about.php on line 77
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Answer
You need to define a value for $index. Add the top of your code:
<?php $index = "1"; ?>