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Flattening multiple overlays into 1 png

davefootball123

By davefootball123
in PHP Coding Help

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davefootball123 Member

davefootball123

Posted
Posted

I have my warning map fairly well done. It is a background image and if there is  warning for a specific location then that overlay shows. However I would like to make the overlays showing into 1.PNG image if possible.

Here's my code 

  
<?php
ob_start();

$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-94_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/windsor.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/windsor.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/windsor.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/windsor.png" border="0">';
} 
else 
{ 
echo '';
}

$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-147_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/westernlambton.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/westernlambton.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/sarnia.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/sarnia.png" border="0">';
} 
else 
{ 
echo '';
}

$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-46_e.xml';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/easternlambton.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/easternlambton.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-137_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/easternmiddlesex.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/easternmiddlesex.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/london.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/london.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-116_e.xml';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/westernmiddlesex.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/westernmiddlesex.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-98_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/easternelgin.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/easternelgin.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/elgin.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/elgin.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-172_e.xml';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/westernelgin.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/westernelgin.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-15_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/oxford.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/oxford.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/oxford.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/oxford.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-151_e.xml';
$search_torwatch = 'TORNADO WATCH  IN EFFECT';
$search_svrwatch = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/westernsimcoe.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/westernsimcoe.png" border="0">';

} else if(strpos($file_contents, $search_torwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Watch/barrie.png" border="0">';
} else if (strpos($file_contents, $search_svrwatch) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Watch/barrie.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-169_e.xml';
$search_torwarn = 'SEVERE THUNDERSTORM WATCH  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/northernsimcoe.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/northernsimcoe.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-49_e.xml';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/southernsimcoe.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/southernsimcoe.png" border="0">';
} 
else 
{ 
echo '';
}
$url = 'http://www.weatheroffice.gc.ca/rss/warning/on-13_e.xml';
$search_torwarn = 'TORNADO WARNING  IN EFFECT';
$search_svrwarn = 'SEVERE THUNDERSTORM WARNING  IN EFFECT';
$file_contents = file_get_contents($url);

if(strpos($file_contents, $search_torwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/TOR Warn/easternsimcoe.png" border="0">';

} else if(strpos($file_contents, $search_svrwarn) !== FALSE){
// There's a watch.
echo '<center><img style="position:absolute;left:50%;margin-left:-397px; margin-top:30px" src="/Warningoverlays/SVR Warn/easternsimcoe.png" border="0">';
} 
else 
{ 
echo '';
}
$page = ob_get_contents();
ob_end_flush();
$fp = fopen("ecwarnings.php","w");
$fp1 = fopen("ecwarnings.html","w");
fwrite($fp,$page);
fclose($fp);
?>
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Jessica Advanced Member

Jessica

Posted
Posted

First of all, you have the same code over and over again - you need to either make it a function, or start using some arrays and loops.

Secondly, I don't see any code in there that is attempting to create an image using PHP. What have you tried so far?

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darkfreaks Advanced Member

darkfreaks

Posted
Posted

i agree with the above your code looks messy and cluttered with all the if statements. it would look much neater if you put some of that into a function like this...

 

function getLineWithString($fileName, $str) {
    $lines = file($fileName);
    foreach ($lines as $lineNumber => $line) {
        if (strpos($line, $str) !== false) {
            return $line;
        }
    }
    return -1;
}

 

this should search for the line in the file and return it if it does not equal FALSE. then output the function and echo the correct picture.

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