如何检查URL是否包含PHP中的日期

Question

I want to build an automated function to automatically upload reports from a URL at end of the day if found on that URL. My question is the URL keeps changing daily with a date. How can I obtain whether the URL has a date? Here I am pasting the url from which i need to extract data

www.bseindia.com/download/BhavCopy/Equity/EQ140316_CSV.ZIP

So the string after "Equity/" needs to be validated as it contains the date. How to build a function in php fro that.. It will be a great help. Thanks in advance

here is the code that I am following,

<?php

$url = 'http://www.bseindia.com/download/BhavCopy/Equity/EQ140316_CSV.ZIP';
if ( preg_match("/\/EQ\d{6}_CSV\.ZIP/", $url, $matches)) {
$path = '/upload/';

$headers = getHeaders($url);

if ($headers['http_code'] === 200 and $headers['download_content_length'] < 1024*1024) {
  if (download($url, $path)){
    echo 'Download complete!'; 
  }
}
}


/**
 * Get Headers function
 * @param str #url
 * @return array
 */
function getHeaders($url)
{
  $ch = curl_init($url);
  curl_setopt( $ch, CURLOPT_NOBODY, true );
  curl_setopt( $ch, CURLOPT_RETURNTRANSFER, false );
  curl_setopt( $ch, CURLOPT_HEADER, false );
  curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
  curl_setopt( $ch, CURLOPT_MAXREDIRS, 3 );
  curl_exec( $ch );
  $headers = curl_getinfo( $ch );
  curl_close( $ch );

  return $headers;

}

 /**
 * Download
 * @param str $url, $path
 * @return bool || void
 */
function download($url, $path)
{
  # open file to write
  $fp = fopen ($path, 'w+');
  # start curl
  $ch = curl_init();
  curl_setopt( $ch, CURLOPT_URL, $url );
  # set return transfer to false
  curl_setopt( $ch, CURLOPT_RETURNTRANSFER, false );
  curl_setopt( $ch, CURLOPT_BINARYTRANSFER, true );
  curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );
  # increase timeout to download big file
  curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 10 );
  # write data to local file
  curl_setopt( $ch, CURLOPT_FILE, $fp );
  # execute curl
  curl_exec( $ch );
  # close curl
  curl_close( $ch );
  # close local file
  fclose( $fp );

  if (filesize($path) > 0) 
      return true;
}


?>

Answer 1

Try this function:

function containsDate($url){
   preg_match("/\/EQ\d{6}_CSV\.ZIP/", $url, $matches);
   return !empty($matches[0]);
}