File

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

Clear Cache in Android Application programmatically

If you are looking for delete cache of your own application then simply delete your cache directory and its all done !

public static void deleteCache(Context context) {
    try {
        File dir = context.getCacheDir();
        deleteDir(dir);
    } catch (Exception e) {}
}

public static boolean deleteDir(File dir) {
    if (dir != null && dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;
            }
        }
        return dir.delete();
    } else if(dir!= null && dir.isFile()) {
        return dir.delete();
    } else {
        return false;
    }
}

public static void deleteCache(Context context) {

try {

File dir = context.getCacheDir();

deleteDir(dir);

} catch (Exception e) {}

}

public static boolean deleteDir(File dir) {

if (dir != null && dir.isDirectory()) {

String[] children = dir.list();

for (int i = 0; i < children.length; i++) {

boolean success = deleteDir(new File(dir, children[i]));

if (!success) {

return false;

}

return dir.delete();

} else if(dir!= null && dir.isFile()) {

return dir.delete();

} else {

return false;

}

And you may require following permission to add in your manifest file in order to delete cache of other application

<uses-permission android:name="android.permission.CLEAR_APP_CACHE"/>

1	<uses-permission android:name="android.permission.CLEAR_APP_CACHE"/>

shubham sharma May 25, 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

Android Internal and External storage example – Store and Retrieve Data

Android Internal Storage Internal storage are private to your application and other applications cannot access them (nor can the user). When the user uninstalls your application, these files are removed. Android External Storage External storage such as SD card can also store application data, there’s no security enforced upon files you save to the external […]

shubham sharma February 1, 2017 Read More

Upload File

public function uploadAvatar($photo = array()) {
		if (! empty ( $photo ['name'] )) {
			
			$upload_dir = BASE_PATH . "photos/profiles";
			$md_dir = md5 ( $this->user_info ['email'] );
			$pathname = $upload_dir . "/" . $md_dir;
			
			if (! file_exists ( $pathname )) {
				mkdir ( $pathname );
			}
			
			$upload_photo = new upload ( $photo );
			
			if ($upload_photo->uploaded) {				
				$upload_photo->file_new_name_body = 'avatar2';
				
				$upload_photo->image_convert = "jpg";
				$upload_photo->image_min_width = 300;
				$upload_photo->image_min_height = 300;
				$upload_photo->file_auto_rename = false;
				$upload_photo->file_overwrite = true;	
				$upload_photo->file_max_size = "300K";
				$upload_photo->allowed = "image/*";
				$upload_photo->Process ( $pathname . "/" );
				if ($upload_photo->processed) {
					
					$photo = $upload_file->file_dst_name_body . "." . $upload_file->file_dst_name_ext;
					$return ['src'] = $photo;					
					return $return;
				} else {
					$return ['err'] = 1;
					$return ['msg'] = $upload_photo->error;
					
					return $return;
				}
			}
		}else{
			$return ['err'] = 1;
			$return ['msg'] = "Please select an image";
				
			return $return;
		}
	}

public function uploadAvatar($photo = array()) {

if (! empty ( $photo ['name'] )) {

$upload_dir = BASE_PATH . "photos/profiles";

$md_dir = md5 ( $this->user_info ['email'] );

$pathname = $upload_dir . "/" . $md_dir;

if (! file_exists ( $pathname )) {

mkdir ( $pathname );

}

$upload_photo = new upload ( $photo );

if ($upload_photo->uploaded) {

$upload_photo->file_new_name_body = 'avatar2';

$upload_photo->image_convert = "jpg";

$upload_photo->image_min_width = 300;

$upload_photo->image_min_height = 300;

$upload_photo->file_auto_rename = false;

$upload_photo->file_overwrite = true;

$upload_photo->file_max_size = "300K";

$upload_photo->allowed = "image/*";

$upload_photo->Process ( $pathname . "/" );

if ($upload_photo->processed) {

$photo = $upload_file->file_dst_name_body . "." . $upload_file->file_dst_name_ext;

$return ['src'] = $photo;

return $return;

} else {

$return ['err'] = 1;

$return ['msg'] = $upload_photo->error;

return $return;

}

}else{

$return ['err'] = 1;

$return ['msg'] = "Please select an image";

return $return;

}

shubham sharma November 7, 2016 Read More

New Dev Point

Some problems explained

File

Read file from server

Clear Cache in Android Application programmatically

Remove files and dir in PHP

Android Internal and External storage example – Store and Retrieve Data

Upload File