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Author Archives: thecitizen
MySQLi OOP connection example PHP
$mysqli = new mysqli("localhost", "my_user", "my_password", "world"); if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT * FROM users WHERE user_id=’$userid’"; if ($result = $mysqli->query($query)) { while ($row = $result->fetch_assoc()) { echo $row['name'] ."<br />"; } $result->close(); … Continue reading
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Recursive Functions in PHP (Simple Examples)
A recursive function is a regular function which calls itself.. // Factorial example (ie 5 * 4 * 3 * 2 * 1) function factorial($n) { if ($n == 1) return 1; return $n * factorial($n-1); } echo factorial(5); // … Continue reading
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Switch Statement PHP (Simple Example)
$i = 1; switch($i) { case 0: echo ‘i equals 0′; break; case 1: echo ‘i equals 1′; break; default: echo ‘i equals the default value’; }
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Do-While Statement PHP (Simple Example)
$i = 0; do { echo $i++; } while ($i <= 10);
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While Statement in PHP (Simple Example)
$i = 0; while ($i <= 10) { echo $i++; }
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For Loop vs Foreach Loop in PHP (Simple Example)
// For Loop for ($i = 1; $i <= 10; $i++) { echo $i; } // Foreach Loop $array = array("sample" => "value", "sample2" => "value2", "sample3" => "value3"); foreach ($array as $key => $val) { echo $key . ‘: … Continue reading
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WordPress get_the_content function no paragraph tags
Did you just use the WordPress get_the_content function and realize that all of the line breaks from the visual editor are not being returned as paragraph tags? Solution: Apply the appropriate filters as outlined in the WordPress codex… <?php $content … Continue reading
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Get current index position in loop in WordPress
Need to get the current index position while iterating through a WordPress loop? Simple… just use $wp_query->current_post Here’s a very stripped down example loop. Note the output starts at 0 (ie 0, 1, 2, 3…) <?php while (have_posts()) : the_post(); … Continue reading
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Get image path in child theme in WordPress
To get an image path (or any other file for that matter) inside your child theme in WordPress you can use the get_bloginfo function with the “stylesheet_directory” parameter. <img src="<?php echo get_bloginfo(‘stylesheet_directory’); ?>/yourpath/to/an/imagefile.jpg" id="my-new-image" alt="My New Image" />
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Remove “comments are closed” from a WordPress theme
On a client’s site, needed to remove “comments are closed” from post/pages where comments have been manually disallowed (by the client on the bottom of the edit screen). Most blogs say just to remove the call to <?php comments_template(); ?> … Continue reading
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