Category Archives: Hacks

How to configure the perfect-scrollbar jQuery plugin

Posted on August 2, 2013 by krumch

Today I encountered a problem with the perfect-scrollbar jQuery plugin on a WordPress page whose content needed to scroll as one block. The plugin worked correctly with plain text, but the layout broke when an ol, ul, or table element … Continue reading →

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“Nivo Slider” v1.9 quick fix

Posted on February 23, 2013 by krumch

“Nivo Slider” is a useful slideshow plugin, but version 1.9 introduced a bug that displays the following warning: Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in /homepages/19/d395780486/htdocs/wp-content/plugins/nivo-slider/nivo-slider.php on line 1572 A quick workaround … Continue reading →

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How to add custom post types to the main WordPress RSS feed

Posted on February 6, 2013 by krumch

Several articles, including this discussion and this tutorial, explain how to add custom post types to the main WordPress RSS feed. None of the suggested methods worked for me with WordPress 3.5.1, so I created another solution with a more … Continue reading →

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Using “Debug Bar”, “Debug Bar Action Hooks”, and “Kint Debugger” together

Posted on November 26, 2012 by krumch

I needed to trace the execution of a WordPress plugin, so I installed several developer tools: “Developer”, “Debug Bar”, “Debug Bar Transients”, “Debug Bar Action Hooks”, and “Kint Debugger”. I then tried to display a variable with Kint Debugger, but … Continue reading →

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Working around the maximum execution time in WordPress

Posted on November 20, 2012 by krumch

Today I found a problem: time ends… Well, for a WordPress plugin only, the KC s2M+MC one. I mean I got “Maximum execution time of 60 seconds exceeded” error, when I run a long operation (synchronizing members in MailChimp list … Continue reading →

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Inspecting the WordPress AJAX procedure

Posted on September 20, 2012 by krumch

Here I describe an unusual way to use AJAX inside WordPress, by usual “admin-ajax.php” URL. Usually we run AJAX in WordPress with following code: add_action(‘wp_ajax_mp_my_action’, ‘my_action’); add_action(‘wp_ajax_nopriv_my_action’, ‘my_action’); function my_action() { … } Then we fire it with GET query … Continue reading →

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Hack the KC Tools…

Posted on September 20, 2012 by krumch

Sometimes you need to inspect the information a server receives from a complex form or POST request. The following method works with all versions of KC Tools. Set the form’s action attribute to: KC Tools WP and KC Tools WP … Continue reading →

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s2Member® hack – custom ccaps

Posted on September 3, 2012 by krumch

WordPres’s plugin s2Member® have his own “scripting language” of several []-tags. One (and maybe most used) tag is [s2If …] [/s2If], where we can set conditionals to show or hide content, functions etc, depending of privileges of current viewer, like … Continue reading →

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Unexpected parseFloat behavior with this.innerHTML in Chrome

Posted on August 3, 2012 by krumch

This was an unusual case. In one project, I used the JavaScript parseFloat() function to calculate a final total, but the value came from HTML previously generated by a jQuery AJAX request: $(‘#’+id).html(rezult+’ ‘+currency); … $(‘#total’).html(‘TOTAL: ‘+totalcalc()); The value therefore … Continue reading →

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Chinese characters from Excel to HTML, handled with VBA

Posted on April 23, 2012 by maya

This macros turns Chinese letters in “MS Excel 2007” spreadsheet to HTML codes. It will works with all Unicode chars, so can be used with Cyrilic, Hebrew, Arab, Japan an all others languages. In my case it prepares XML form … Continue reading →

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