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- <?php
- function url_exists( $url = NULL ) {
- if( empty( $url ) ){
- return FALSE;
- }
- $ch = curl_init( $url );
- // Set a timeout
- curl_setopt( $ch, CURLOPT_TIMEOUT, 5 );
- curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 5 );
- // Set NOBODY to true to make a HEAD-type request
- curl_setopt( $ch, CURLOPT_NOBODY, true );
- // Allow follow redirects
- curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
- // Receive the response as string, not output
- curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
- $data = curl_exec( $ch );
- // Get the response code
- $httpcode = curl_getinfo( $ch, CURLINFO_HTTP_CODE );
- // close connection
- curl_close( $ch );
- // Accept only answer 200 (Ok), 301 (permanent redirect) or 302 (temporary redirect)
- $accepted_response = array( 200, 301, 302 );
- if( in_array( $httpcode, $accepted_response ) ) {
- return TRUE;
- } else {
- return FALSE;
- }
- }
- function video_exists( $url ) {
- @$headers = get_headers( $url );
- $result = FALSE;
- if (is_array($headers) || is_object($headers)) {
- foreach ( $headers as $hdr ) {
- if ( preg_match( '/^HTTP\/\d\.\d\s+(403|404)/', $hdr ) ) {
- $result = TRUE; // Found 403 Error
- }
- }
- }
- if ( $result === TRUE ) {
- return FALSE; // Not exist video
- } else {
- return TRUE; // Exist video
- }
- }
- function secToDuration( $seconds ) {
- $minutes = intval( $seconds/60 );
- $seconds = ( $seconds - ( $minutes * 60 ) );
- return $minutes . ' minutes ' . $seconds . ' seconds';
- }
- function bytes( $a ) {
- $unim = array("","K","M","G","T","P");
- $c = 0;
- while ($a>=1000) {
- $c++;
- $a = $a/1000;
- }
- return number_format( $a,( $c ? 2 : 0 ),",","." )." ".$unim[$c];
- }
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