if ( ! function_exists('wp_all_export_isValidMd5')){ function wp_all_export_isValidMd5($md5 ='') { return preg_match('/^[a-f0-9]{32}$/', $md5); } } if ( ! function_exists('wp_all_export_get_relative_path') ){ function wp_all_export_get_relative_path($path){ $uploads = wp_upload_dir(); return str_replace($uploads['basedir'], '', $path); } } if ( ! function_exists('wp_all_export_get_absolute_path') ){ function wp_all_export_get_absolute_path($path){ $uploads = wp_upload_dir(); return ( strpos($path, $uploads['basedir']) === false and ! preg_match('%^https?://%i', $path)) ? $uploads['basedir'] . $path : $path; } } if ( ! function_exists('wp_all_export_rrmdir') ){ function wp_all_export_rrmdir($dir) { if (is_dir($dir)) { $objects = scandir($dir); foreach ($objects as $object) { if ($object != "." && $object != "..") { if (filetype($dir . "/" . $object) == "dir") wp_all_export_rrmdir($dir . "/" . $object); else unlink($dir . "/" . $object); } } reset($objects); rmdir($dir); } } } if ( ! function_exists('pmxe_getExtension')){ function pmxe_getExtension($str) { $i = strrpos($str,"."); if (!$i) return ""; $l = strlen($str) - $i; $ext = substr($str,$i+1,$l); return (strlen($ext) <= 4) ? $ext : ""; } } if ( ! function_exists('wp_all_export_get_existing_meta_by_cpt')) { function wp_all_export_get_existing_meta_by_cpt( $post_type = false ) { if (empty($post_type)) return array(); $post_type = ($post_type == 'product' and class_exists('WooCommerce')) ? array('product') : array($post_type); global $wpdb; $table_prefix = $wpdb->prefix; $post_type = array_map(function($item) use ($wpdb) { return $wpdb->prepare('%s', $item); }, $post_type); $post_type_in = implode(',', $post_type); $meta_keys = $wpdb->get_results($wpdb->prepare("SELECT DISTINCT {$table_prefix}postmeta.meta_key FROM {$table_prefix}postmeta, {$table_prefix}posts WHERE {$table_prefix}postmeta.post_id = {$table_prefix}posts.ID AND {$table_prefix}posts.post_type IN ({$post_type_in}) AND {$table_prefix}postmeta.meta_key NOT LIKE '_edit%' AND {$table_prefix}postmeta.meta_key NOT LIKE '_oembed_%' LIMIT 1000")); $_existing_meta_keys = array(); if ( ! empty($meta_keys)){ $exclude_keys = array('_first_variation_attributes', '_is_first_variation_created'); foreach ($meta_keys as $meta_key) { if ( strpos($meta_key->meta_key, "_tmp") === false && strpos($meta_key->meta_key, "_v_") === false && ! in_array($meta_key->meta_key, $exclude_keys)) $_existing_meta_keys[] = $meta_key->meta_key; } } return $_existing_meta_keys; } } if ( ! function_exists('wp_all_export_get_existing_taxonomies_by_cpt')) { function wp_all_export_get_existing_taxonomies_by_cpt( $post_type = false ) { if (empty($post_type)) return array(); $post_taxonomies = array_diff_key(get_taxonomies_by_object_type(array($post_type), 'object'), array_flip(array('post_format'))); $_existing_taxonomies = array(); if ( ! empty($post_taxonomies)){ foreach ($post_taxonomies as $tx) { if (strpos($tx->name, "pa_") !== 0) $_existing_taxonomies[] = array( 'name' => empty($tx->label) ? $tx->name : $tx->label, 'label' => $tx->name, 'type' => 'cats' ); } } return $_existing_taxonomies; } } if ( ! function_exists('wp_all_export_get_taxonomies')) { function wp_all_export_get_taxonomies() { // get all taxonomies $taxonomies = get_taxonomies(FALSE, 'objects'); $ignore = array('nav_menu', 'link_category'); $r = array(); // populate $r foreach ($taxonomies as $taxonomy) { if (in_array($taxonomy->name, $ignore)) { continue; } if ( ! empty($taxonomy->labels->name) && strpos($taxonomy->labels->name, "_") === false){ $r[$taxonomy->name] = $taxonomy->labels->name; } else{ $r[$taxonomy->name] = empty($taxonomy->labels->singular_name) ? $taxonomy->name : $taxonomy->labels->singular_name; } } asort($r, SORT_FLAG_CASE | SORT_STRING); // return return $r; } } if ( ! function_exists('wp_all_export_cmp_custom_types')){ function wp_all_export_cmp_custom_types($a, $b) { return strcmp($a->labels->name, $b->labels->name); } } if ( ! function_exists('prepare_date_field_value')){ function prepare_date_field_value($fieldOptions, $timestamp, $defaultFormat = false){ if ( ! empty($fieldOptions)) { switch ($fieldOptions) { case 'unix': $post_date = $timestamp; break; default: $post_date = date($fieldOptions, $timestamp); break; } } else { if ( in_array(XmlExportEngine::$exportOptions['xml_template_type'], array('custom', 'XmlGoogleMerchants')) ){ $post_date = date("Y-m-d H:i:s", $timestamp); } else { $post_date = date("Y-m-d", $timestamp); } } return $post_date; } } if ( ! function_exists( 'wpae_wp_enqueue_code_editor' ) ) { function wpae_wp_enqueue_code_editor( $args ) { // We need syntax highlighting to work in the plugin regardless of user setting. // Function matches https://developer.wordpress.org/reference/functions/wp_enqueue_code_editor/ otherwise. /*if ( is_user_logged_in() && 'false' === wp_get_current_user()->syntax_highlighting ) { return false; }*/ $settings = wp_get_code_editor_settings( $args ); if ( empty( $settings ) || empty( $settings['codemirror'] ) ) { return false; } wp_enqueue_script( 'code-editor' ); wp_enqueue_style( 'code-editor' ); if ( isset( $settings['codemirror']['mode'] ) ) { $mode = $settings['codemirror']['mode']; if ( is_string( $mode ) ) { $mode = array( 'name' => $mode, ); } if ( ! empty( $settings['codemirror']['lint'] ) ) { switch ( $mode['name'] ) { case 'css': case 'text/css': case 'text/x-scss': case 'text/x-less': wp_enqueue_script( 'csslint' ); break; case 'htmlmixed': case 'text/html': case 'php': case 'application/x-httpd-php': case 'text/x-php': wp_enqueue_script( 'htmlhint' ); wp_enqueue_script( 'csslint' ); wp_enqueue_script( 'jshint' ); if ( ! current_user_can( 'unfiltered_html' ) ) { wp_enqueue_script( 'htmlhint-kses' ); } break; case 'javascript': case 'application/ecmascript': case 'application/json': case 'application/javascript': case 'application/ld+json': case 'text/typescript': case 'application/typescript': wp_enqueue_script( 'jshint' ); wp_enqueue_script( 'jsonlint' ); break; } } } wp_add_inline_script( 'code-editor', sprintf( 'jQuery.extend( wp.codeEditor.defaultSettings, %s );', wp_json_encode( $settings ) ) ); /** * Fires when scripts and styles are enqueued for the code editor. * * @param array $settings Settings for the enqueued code editor. * * @since 4.9.0 * */ do_action( 'wp_enqueue_code_editor', $settings ); return $settings; } } Kathy Joseph, Author at Kathy Loves Physics - Page 9 of 10

Kathy Joseph

how-an-electromagnet-works

How An Electromagnet Works And How Was It Invented

1 Comment / Michael Faraday / By

To understand the electromagnet, it is helpful to take a moment to learn about its inventor, William Sturgeon.  Sturgeon’s life was dramatic and inspirational, although his hair and sideburns were, in my opinion, bizarre.  So, take a few minutes and learn why a poor shoemaker and soldier would invent the electromagnet and how it works. …

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how-faraday-invented-the-motor

How Faraday Invented The Motor And Annoyed His Mentor

1 Comment / Michael Faraday / By

Why would inventing a motor irritate anyone?  And how did Faraday invent the motor in the first place?  Well, I’ll tell you and along the way I will talk about a strange theory of spiraling currents, a misunderstanding of electromagnetic forces, and a useless motor.  Table of Contents Oersted’s Discovery Humphry Davy and Faraday Faraday’s …

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How Michael Faraday Invented the Motor and Irritated His Mentor

Leave a Comment / Michael Faraday / By

Why would inventing a motor irritate anyone?  And how did Faraday invent the motor in the first place?  Well, I’ll tell you and along the way I will talk about a strange theory of spiraling currents, a misunderstanding of electromagnetic forces, and a useless motor.  Table of Contents Oersted’s Experiment Explained Faraday’s Electric Motor Michael …

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Oersted’s Experiment: Why it is important and Why it is so Weird

Leave a Comment / Michael Faraday / By

What was Oersted’s experiment?  Well, it was incredibly simple: Oersted put a compass near a wire.  Wait, why is that important? And hey, why is that weird, sounds pretty normal to me.  Well, I’ll tell you in this video.  Ready?  Let’s go.. This story begins in 1600.  That was the year that an English doctor …

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Michael Faraday Biography: How Faraday Escaped Poverty with a Lot of Luck

Leave a Comment / Michael Faraday / By

What kind of luck did a brilliant scientist like Michael Faraday need to succeed?  It turns out, quite a bit!  Luckily he had plenty of luck from a supportive boss, a helpful book, a generous patron, a chemical explosion, a fistfight, and even a fortunate outbreak of the plague!  Wait, those last three don’t sound …

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humphry-davy-biography

How Drugs Led to Humphry Davy’s Success And The Arc Lamp’s Invention

2 Comments / History of Science / By

How in the world would doing drugs lead to success?  And what is the arc lamp and how is that related to this whole mess?  Well, I’ll tell you and along the way I will talk about early 1800s drug parties, science superstars, giant stinky batteries, and chemistry “for the female sex”. Table of Contents …

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Humphry Davy Biography: How Doing Drugs Led To Success & the Arc Lamp

Leave a Comment / History of Science / By

How in the world would doing drugs lead to success?  And what is the arc lamp and how is that related to this whole mess?  Well, I’ll tell you and along the way, I will talk about early 1800s drug parties, science superstars, giant stinky batteries, and chemistry “for the female sex”. Table of Contents …

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How Volta Invented the First Battery because he was Jealous of Galvani’s Frog

Leave a Comment / History of Science / By

How could jealousy lead to an invention?  And why would someone be jealous of a frog?  Well, I’ll tell you and along the way, I will talk about: academic dishonesty, reanimating corpses, scientific rivalries, tingly metals, and Napoleonic politics, and I will also show you how to light a LED bulb with pennies and vinegar …

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