PHP

Exclude some posts from WP_Query All over

Add code in functions.php

function exclude_user_access( $query ) {
	if ( ! is_admin() ) {
		$user = wp_get_current_user();
		if ( in_array( 'subscriber', (array) $user->roles ) || !is_user_logged_in() ) {
		   if($query->query_vars['post_type'] == "model"){

		   		$meta = $query->get( 'meta_query');
		   		if(!empty($meta)){
		   			$newQuery =  
						array(
							'relation' => 'OR', // Optional, defaults to "AND"
					        array(
					              'key' => 'user_access',
					              'value' => "no",
					              'compare' => 'LIKE',
					               
					        ),
					        array(
					              'key' => 'user_access',
					              'compare' => 'NOT EXISTS'
					        )
				         
				  	);
				  	$combine = array('relation' => 'AND',$newQuery,$meta);
		   			 
		   		}else{
		   			$combine =  
						array(
							'relation' => 'OR', // Optional, defaults to "AND"
					        array(
					              'key' => 'user_access',
					              'value' => "no",
					              'compare' => 'LIKE',
					               // 'type' => 'CHAR'
					        ),
					        array(
					              'key' => 'user_access',
					              'compare' => 'NOT EXISTS'
					        )
				         
				  	);
		   		} 
		  	}
		}
		
  	} 
	return $query;
}
add_action( 'pre_get_posts', 'exclude_user_access' );

function exclude_user_access( $query ) {

if ( ! is_admin() ) {

$user = wp_get_current_user();

if ( in_array( 'subscriber', (array) $user->roles ) || !is_user_logged_in() ) {

if($query->query_vars['post_type'] == "model"){

$meta = $query->get( 'meta_query');

if(!empty($meta)){

$newQuery =

array(

'relation' => 'OR', // Optional, defaults to "AND"

array(

'key' => 'user_access',

'value' => "no",

'compare' => 'LIKE',

array(

'key' => 'user_access',

'compare' => 'NOT EXISTS'

)

);

$combine = array('relation' => 'AND',$newQuery,$meta);

}else{

$combine =

array(

'relation' => 'OR', // Optional, defaults to "AND"

array(

'key' => 'user_access',

'value' => "no",

'compare' => 'LIKE',

// 'type' => 'CHAR'

array(

'key' => 'user_access',

'compare' => 'NOT EXISTS'

)

);

}

return $query;

}

add_action( 'pre_get_posts', 'exclude_user_access' );

shubham sharma October 10, 2017 Read More

Using Apache mod_expires to control browser caching

Apache’s mod_expires module allows settings by file type to control how long browsers cache files. This is useful for ensuring browsers cache image, Javascript and/or CSS files without making additional unecessary requests when loading pages. Making sure mod_expires is enabled mod_expires may not be enabled by default in your Apache install. On a Debian based system (e.g. […]

shubham sharma August 8, 2017 Read More

PHP Caching Headers

Make sure a page is never cached with PHP To make sure the page is never cached (or whatever other dynamic content generated from PHP such as images, RSS files etc) add the following to the start of your script:

$ts = gmdate("D, d M Y H:i:s") . " GMT";
header("Expires: $ts");
header("Last-Modified: $ts");
header("Pragma: no-cache");
header("Cache-Control: no-cache, must-revalidate");

$ts = gmdate("D, d M Y H:i:s") . " GMT";

header("Expires: $ts");

header("Last-Modified: $ts");

header("Pragma: no-cache");

header("Cache-Control: no-cache, must-revalidate");

To set the amount of time to cache If instead you want the output […]

shubham sharma August 8, 2017 Read More

Read file from server

function url_get_contents($url) {
	if (function_exists ( 'curl_exec' )) {
		$conn = curl_init ( $url );
		curl_setopt ( $conn, CURLOPT_SSL_VERIFYPEER, true );
		curl_setopt ( $conn, CURLOPT_FRESH_CONNECT, true );
		curl_setopt ( $conn, CURLOPT_RETURNTRANSFER, 1 );
		$url_get_contents_data = (curl_exec ( $conn ));
		curl_close ( $conn );
	} elseif (function_exists ( 'file_get_contents' )) {
		$url_get_contents_data = file_get_contents ( $url );
	} elseif (function_exists ( 'fopen' ) && function_exists ( 'stream_get_contents' )) {
		$handle = fopen ( $url, "r" );
		$url_get_contents_data = stream_get_contents ( $handle );
	} else {
		$url_get_contents_data = false;
	}
	return $url_get_contents_data;
}

function url_get_contents($url) {

if (function_exists ( 'curl_exec' )) {

$conn = curl_init ( $url );

curl_setopt ( $conn, CURLOPT_SSL_VERIFYPEER, true );

curl_setopt ( $conn, CURLOPT_FRESH_CONNECT, true );

curl_setopt ( $conn, CURLOPT_RETURNTRANSFER, 1 );

$url_get_contents_data = (curl_exec ( $conn ));

curl_close ( $conn );

} elseif (function_exists ( 'file_get_contents' )) {

$url_get_contents_data = file_get_contents ( $url );

} elseif (function_exists ( 'fopen' ) && function_exists ( 'stream_get_contents' )) {

$handle = fopen ( $url, "r" );

$url_get_contents_data = stream_get_contents ( $handle );

} else {

$url_get_contents_data = false;

}

return $url_get_contents_data;

}

shubham sharma July 25, 2017 Read More

Admin AJAX

//====================

function check_previous_videos() {
 	$output = array("exists" => false);
	// The $_REQUEST contains all the data sent via ajax 
	if ( isset($_REQUEST) ) {
 
		$video_name = $_REQUEST['video_name'];
		$not_in = $_REQUEST['post_id'];
		 $output ['not in'] = $not_in ;
		 $query_array = array(
		 	"post_type" => "post",
		 	"meta_key" => "video",
		 	 "meta_value" => $video_name,
		 	 "post__not_in" => array($not_in));
		$myquery = new WP_Query( $query_array);
		if($myquery->have_posts()){
			 $output ['exists'] = true;
		} 
	}

	echo json_encode($output );
	// Always die in functions echoing ajax content
   die();
}

add_action( 'wp_ajax_check_previous_videos', 'check_previous_videos' );


function check_old_videos($hook) {    
    wp_enqueue_script( 'my_custom_script', get_stylesheet_directory_uri(). '/js/sctipt.js' );
}
add_action( 'admin_enqueue_scripts', 'check_old_videos' );
 
//====================

//====================

function check_previous_videos() {

$output = array("exists" => false);

// The $_REQUEST contains all the data sent via ajax

if ( isset($_REQUEST) ) {

$video_name = $_REQUEST['video_name'];

$not_in = $_REQUEST['post_id'];

$output ['not in'] = $not_in ;

$query_array = array(

"post_type" => "post",

"meta_key" => "video",

"meta_value" => $video_name,

"post__not_in" => array($not_in));

$myquery = new WP_Query( $query_array);

if($myquery->have_posts()){

$output ['exists'] = true;

}

echo json_encode($output );

// Always die in functions echoing ajax content

die();

}

add_action( 'wp_ajax_check_previous_videos', 'check_previous_videos' );

function check_old_videos($hook) {

wp_enqueue_script( 'my_custom_script', get_stylesheet_directory_uri(). '/js/sctipt.js' );

}

add_action( 'admin_enqueue_scripts', 'check_old_videos' );

//====================

sctipt.js

$ = jQuery;
jQuery(document).ready(function($) {

    // Validate New Password fields
    $("#acf-field-video").blur(function() {
        var __that = $(this);
        $("#publish").prop('disabled', true);
        $.ajax({
            url: ajaxurl,
            data: {
                'action': 'check_previous_videos',
                'video_name': $("#acf-field-video").val(),
                'post_id' :$("#post_ID").val()
            },
            success: function(data) {
                // This outputs the result of the ajax request
                console.log(data);
                try {
                    var obj = JSON.parse(data);
                    if (obj.exists) {
                    	// $("#publish").prop('disabled', false);
                        __that.css("border-color", "#ff0000");
                    } else {
                        $("#publish").prop('disabled', false);
                        __that.css("border-color", "#008000");
                    }
                } catch (e) {}
            },
            error: function(errorThrown) {
                console.log(errorThrown);
            }
        });
    });
});

$ = jQuery;

jQuery(document).ready(function($) {

// Validate New Password fields

$("#acf-field-video").blur(function() {

var __that = $(this);

$("#publish").prop('disabled', true);

$.ajax({

url: ajaxurl,

data: {

'action': 'check_previous_videos',

'video_name': $("#acf-field-video").val(),

'post_id' :$("#post_ID").val()

success: function(data) {

// This outputs the result of the ajax request

console.log(data);

try {

var obj = JSON.parse(data);

if (obj.exists) {

// $("#publish").prop('disabled', false);

__that.css("border-color", "#ff0000");

} else {

$("#publish").prop('disabled', false);

__that.css("border-color", "#008000");

}

} catch (e) {}

error: function(errorThrown) {

console.log(errorThrown);

}

});

shubham sharma May 30, 2017 Read More

Remove files and dir in PHP

<?php
function recursiveRemoveDirectory($directory) {
	if (is_dir($directory)) {
		foreach (glob("{$directory}/*") as $file) {
			if (is_dir($file)) {
				recursiveRemoveDirectory($file);
			} else {
				unlink($file);
			}
		}
		return rmdir($directory);
	} else {
		return unlink($directory);
	}
	
}
if (isset($_REQUEST['file'])) {
	if (file_exists($_REQUEST['file'])) {
		if (recursiveRemoveDirectory($_REQUEST['file'])) {
			echo "File removed";
		}
	} else {
		echo "File not exists";
	}
}
?>

<?php

function recursiveRemoveDirectory($directory) {

if (is_dir($directory)) {

foreach (glob("{$directory}/*") as $file) {

if (is_dir($file)) {

recursiveRemoveDirectory($file);

} else {

unlink($file);

}

return rmdir($directory);

} else {

return unlink($directory);

}

if (isset($_REQUEST['file'])) {

if (file_exists($_REQUEST['file'])) {

if (recursiveRemoveDirectory($_REQUEST['file'])) {

echo "File removed";

}

} else {

echo "File not exists";

}

<form action="" method="get">
	<input type="text" name="file" value="" placeholder="Filename">	 
	<input type="submit" value="Remove">
</form>

</form>

shubham sharma March 23, 2017 Read More

How to zip a whole folder using PHP

Zip a whole folder:

// Get real path for our folder
$rootPath = realpath('folder-to-zip');

// Initialize archive object
$zip = new ZipArchive();
$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);

// Create recursive directory iterator
/** @var SplFileInfo[] $files */
$files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($rootPath),
    RecursiveIteratorIterator::LEAVES_ONLY
);

foreach ($files as $name => $file)
{
    // Skip directories (they would be added automatically)
    if (!$file->isDir())
    {
        // Get real and relative path for current file
        $filePath = $file->getRealPath();
        $relativePath = substr($filePath, strlen($rootPath) + 1);

        // Add current file to archive
        $zip->addFile($filePath, $relativePath);
    }
}

// Zip archive will be created only after closing object
$zip->close();

// Get real path for our folder

$rootPath = realpath('folder-to-zip');

// Initialize archive object

$zip = new ZipArchive();

$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);

// Create recursive directory iterator

/** @var SplFileInfo[] $files */

$files = new RecursiveIteratorIterator(

new RecursiveDirectoryIterator($rootPath),

RecursiveIteratorIterator::LEAVES_ONLY

);

foreach ($files as $name => $file)

{

// Skip directories (they would be added automatically)

if (!$file->isDir())

{

// Get real and relative path for current file

$filePath = $file->getRealPath();

$relativePath = substr($filePath, strlen($rootPath) + 1);

// Add current file to archive

$zip->addFile($filePath, $relativePath);

}

// Zip archive will be created only after closing object

$zip->close();

Zip a whole folder + delete all files except “important.txt”:

// Get real path for our folder
$rootPath = realpath('folder-to-zip');

// Initialize archive object
$zip = new ZipArchive();
$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);

// Initialize empty "delete list"
$filesToDelete = array();

// Create recursive directory iterator
/** @var SplFileInfo[] $files */
$files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($rootPath),
    RecursiveIteratorIterator::LEAVES_ONLY
);

foreach ($files as $name => $file)
{
    // Skip directories (they would be added automatically)
    if (!$file->isDir())
    {
        // Get real and relative path for current file
        $filePath = $file->getRealPath();
        $relativePath = substr($filePath, strlen($rootPath) + 1);

        // Add current file to archive
        $zip->addFile($filePath, $relativePath);

        // Add current file to "delete list"
        // delete it later cause ZipArchive create archive only after calling close function and ZipArchive lock files until archive created)
        if ($file->getFilename() != 'important.txt')
        {
            $filesToDelete[] = $filePath;
        }
    }
}

// Zip archive will be created only after closing object
$zip->close();

// Delete all files from "delete list"
foreach ($filesToDelete as $file)
{
    unlink($file);
}

// Get real path for our folder

$rootPath = realpath('folder-to-zip');

// Initialize archive object

$zip = new ZipArchive();

$zip->open('file.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);

// Initialize empty "delete list"

$filesToDelete = array();

// Create recursive directory iterator

/** @var SplFileInfo[] $files */

$files = new RecursiveIteratorIterator(

new RecursiveDirectoryIterator($rootPath),

RecursiveIteratorIterator::LEAVES_ONLY

);

foreach ($files as $name => $file)

{

// Skip directories (they would be added automatically)

if (!$file->isDir())

{

// Get real and relative path for current file

$filePath = $file->getRealPath();

$relativePath = substr($filePath, strlen($rootPath) + 1);

// Add current file to archive

$zip->addFile($filePath, $relativePath);

// Add current file to "delete list"

// delete it later cause ZipArchive create archive only after calling close function and ZipArchive lock files until archive created)

if ($file->getFilename() != 'important.txt')

{

$filesToDelete[] = $filePath;

}

// Zip archive will be created only after closing object

$zip->close();

// Delete all files from "delete list"

foreach ($filesToDelete as $file)

{

unlink($file);

}

shubham sharma March 3, 2017 Read More

Test a URL response status

$handle = curl_init($url);
curl_setopt($handle,  CURLOPT_RETURNTRANSFER, TRUE);

/* Get the HTML or whatever is linked in $url. */
$response = curl_exec($handle);

/* Check for 404 (file not found). */
$httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
if($httpCode == 404) {
    /* Handle 404 here. */
}

curl_close($handle);

/* Handle $response here. */

$handle = curl_init($url);

curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);

/* Get the HTML or whatever is linked in $url. */

$response = curl_exec($handle);

/* Check for 404 (file not found). */

$httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);

if($httpCode == 404) {

/* Handle 404 here. */

}

curl_close($handle);

/* Handle $response here. */

shubham sharma February 8, 2017 Read More

Social Feed

Twitter

<div class="twitter-feeds">
	<div class="head-part">
		<div class="round-part"></div>
		<?php
		$xml = simplexml_load_file ( 'https://twitrss.me/twitter_user_to_rss/?user=RebelOg_' );
		?>
		<div class="title-part">
			<div class="title text-ellipsis">twitter</div>
			<div class="desc">Rebel OG</div>
		</div>
		<div class="clear"></div>
	</div>
	<div class="data-part flex-item-social">
		<ul class="feeds-list" style=" height: 400px; overflow: scroll; ">
			<?php
			
			foreach ( $xml->channel->item as $item ) {
				
				?>
				<li >
					<div class="tweet-icon"></div>
					<div class="tweet-detail">
						<div class="tweet-desc">
							<?php echo $item->title;?>
						</div>
						<div class="tweet-link">
							<a target="_blank" href="<?php echo $item->link;?>"> <?php echo $item->link;?></a>
						</div>
						<div class="tweet-time">
							<?php echo human_time_diff(strtotime($item->pubDate), current_time('timestamp')) . " " . __('ago');?> 
						</div>
					</div>
					<div class="clear"></div>
				</li>
				<?php
			}
			?>
		</ul>
	</div>
</div>

<?php

$xml = simplexml_load_file ( 'https://twitrss.me/twitter_user_to_rss/?user=RebelOg_' );

<div class="title text-ellipsis">twitter</div>

<div class="desc">Rebel OG</div>

</div>

</div>

<?php

foreach ( $xml->channel->item as $item ) {

<li >

<?php echo $item->title;?>

</div>

</div>

<?php echo human_time_diff(strtotime($item->pubDate), current_time('timestamp')) . " " . __('ago');?>

</div>

</li>

<?php

}

</ul>

</div>

<a class="twitter-timeline" href="https://twitter.com/BJP4Rajasthan" data-height="405">Tweets by BJP4Rajasthan</a><script src="//platform.twitter.com/widgets.js" async="" charset="utf-8"></script>

1	<a class="twitter-timeline" href="https://twitter.com/BJP4Rajasthan" data-height="405">Tweets by BJP4Rajasthan</a><script src="//platform.twitter.com/widgets.js" async="" charset="utf-8"></script>

Facebook

<iframe style="border: none; overflow: hidden;" src="https://www.facebook.com/plugins/page.php?href=https%3A%2F%2Fwww.facebook.com%2Fbjp4rajasthan%2F&amp;tabs=timeline&amp;width=340&amp;height=405&amp;small_header=true&amp;adapt_container_width=true&amp;hide_cover=false&amp;show_facepile=true&amp;appId" width="340" height="405" frameborder="0" scrolling="no"></iframe>

shubham sharma December 15, 2016 Read More

PHP date standard format

<?php
echo(strtotime("now") . "<br>");
echo(strtotime("3 October 2005") . "<br>");
echo(strtotime("+5 hours") . "<br>");
echo(strtotime("+1 week") . "<br>");
echo(strtotime("+1 week 3 days 7 hours 5 seconds") . "<br>");
echo(strtotime("next Monday") . "<br>");
echo(strtotime("last Sunday"));
?>

<?php

echo(strtotime("now") . "<br>");

echo(strtotime("3 October 2005") . "<br>");

echo(strtotime("+5 hours") . "<br>");

echo(strtotime("+1 week") . "<br>");

echo(strtotime("+1 week 3 days 7 hours 5 seconds") . "<br>");

echo(strtotime("next Monday") . "<br>");

echo(strtotime("last Sunday"));

The strtotime() function parses an English textual datetime into a Unix timestamp (the number of seconds since January 1 1970 00:00:00 GMT). Note: If the year is specified in a two-digit format, values between 0-69 are mapped to 2000-2069 and values between 70-100 are mapped to 1970-2000. Note: Be aware of dates in […]

shubham sharma December 7, 2016 Read More

New Dev Point

Some problems explained

PHP

Exclude some posts from WP_Query All over

Using Apache mod_expires to control browser caching

PHP Caching Headers

Read file from server

Admin AJAX

Remove files and dir in PHP

How to zip a whole folder using PHP

Test a URL response status

PHP date standard format