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How to set class name to <a> tag in CodeIgniter pagination
<a href="http://example.com/pages/3">3</a>

<a href="http://example.com/pages/3" class="number">3</a>

$config['anchor_class'] = 'class="number" ';

$this->pagination->initialize($config);

$config['anchor_class'] = 'class="number"';
$this->pagination->initialize($config);

$config['anchor_class'] = 'class="number"';

$config['anchor_class'] = 'number';