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@ 2016-01-15T09:30:40Z

<?php

$url = 'http://cmps.cz/i/nar/YT-1954.jpg';

function GetRemoteLastModified( $uri )
{
    // default
    $unixtime = 0;

    $fp = fopen( $uri, "r" );
    if( !$fp ) {return;}

    $MetaData = stream_get_meta_data( $fp );

    foreach( $MetaData['wrapper_data'] as $response )
    {
        // case: redirection
        if( substr( strtolower($response), 0, 10 ) == 'location: ' )
        {
            $newUri = substr( $response, 10 );
            fclose( $fp );
            return GetRemoteLastModified( $newUri );
        }
        // case: last-modified
        elseif( substr( strtolower($response), 0, 15 ) == 'last-modified: ' )
        {
            $unixtime = strtotime( substr($response, 15) );
            break;
        }
    }
    fclose( $fp );
    return $unixtime;
}

var_dump(GetRemoteLastModified('http://cmps.cz/i/nar/YT-1954.jpg'));

Output for git.master, git.master_jit, rfc.property-hooks: Warning: fopen(): php_network_getaddresses: getaddrinfo for cmps.cz failed: System error in /in/qbGgE on line 10 Warning: fopen(http://cmps.cz/i/nar/YT-1954.jpg): Failed to open stream: php_network_getaddresses: getaddrinfo for cmps.cz failed: System error in /in/qbGgE on line 10 NULL

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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