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POWordpress Category ID vs Eval Issue
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copied!<p>Ok this is a little complex. I am creating a plugin, and want to find the category ID from the Post page.</p> <p>That's the easy part.</p> <p>What makes it complex is I am doing it within an ob_start (started in a 'template_redirect' action) as I want to edit the full page before it is returned to the browser. Again that is easy enough from the ob_start function.</p> <p>With the ID returned I want to evaluate some php stored in a sql field. I am trying to do this from within the ob_start function</p> <pre><code>$tui_cifp_insertvalue = tui_cifp_evaluate_html($tui_cifp_insertvalue); </code></pre> <p>This calls this</p> <pre><code>function tui_cifp_evaluate_html($string) { return preg_replace_callback("/(<\?php|<\?|< \?php)(.*?)\?>/si",'EvalBuffer', $string); } </code></pre> <p>Which in turn calls</p> <pre><code>function EvalBuffer($string) { ob_start(); eval("$string[2];"); $ret = ob_get_contents(); ob_end_clean(); return $ret; } </code></pre> <p>And the php I am trying to evaluate is.</p> <pre><code><?php tui_findPostThumbIMG([categoryID],100,100,'categoryintro-thumbnail','','',''); ?> </code></pre> <p>This all works outside the ob_start routine, but here even simple php doesn't work. From within the ob_start routine the plugin breaks and a blank page returns.</p> <p>So I thought I could evaluate the php before the start of the ob_start and pass the result through a global variable. That works, but at the point this starts using the following, the category ID is not available.</p> <pre><code>if ( strpos($_SERVER['REQUEST_URI'], 'wp-admin') === false ) { global $holdvalue; $tui_cifp_insertvalue = get_option('tui_cifp_insertvalue'); $categories = get_the_category(); $categoryID = $categories[0]->cat_ID; $tui_cifp_insertvalue = str_replace("[categoryID]", $categoryID, $tui_cifp_insertvalue); $holdvalue = tui_cifp_evaluate_html($tui_cifp_insertvalue); add_action('template_redirect','tui_cifp_ob_start'); // } </code></pre> <p>The ob_start function</p> <pre><code>function tui_cifp_ob_start() { ob_start('tui_cifp_templatefilter'); } </code></pre> <p>Ok I am stumped ... any ideas?</p> <p>I either need to find a hook that executes at the right time so that I have access to the category ID, or I need to work out how to evaluate the php during the ob_start.</p> <p>Oh ... I guess I should say. What I want to do is replace a tag on a wordpress page with some other information saved in a string, but need to be able to do this once the full page if drawn.</p> <p>Thanks Stephen</p> <p>PS I have asked this on the wordpress forums without a response. Sorry for the cross posting but I am a little desperate. </p>

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