ereg()

[novice2004]

Help please,
How to go about it?
From my web site I would like to automaticaly
read other web site lets say

http://www.ABC.com,

find "USD" and its equivalent value (which in our case is 10,506),
then place it on my web site.
I think I need to use
some expression in function eregi()


<TD align=left><B>Swiss</B></TD>
<TD align=middle>CHF</TD>
<TD align=right>1</TD>
<TD align=right>15,988</TD></TR>


<TR align=middle bgColor=#f4f4f4>
<TD align=left><B>USA</B></TD>
<TD align=middle>USD</TD>
<TD align=right>1</TD>
<TD align=right>10,506</TD></TR>
<TR align=middle bgColor=#f4f4f4>


so far I have:

$file = fopen("

http://www.ABC.com/",

"r");


while (!feof($file))
{
$line = fgets($file);
if (eregi(">USD<", $line, $result)) ????????????????????
{}

}

Thank you

 

[sleipnir214]

First, I wouldn't use any of the regular expression operators. You're not looking for a string that fits a pattern, you're looking for a string that matches another string. There's no need to incur the memory and processor overhead necessary to use the regular expression functions.

With the input you've given, I would inside the if-block: read the next line and discard it; read another line; use one of the regular expression functions to get out the value.

<?php
$file = fopen("test_data.txt", "r"); 

while ($line = fgets($file)) 
{
	if (strstr($line, '>USD<') !== FALSE)
	{
		$line = fgets($file);
		$line = fgets($file);
		
		$foo = preg_replace('/.*>([\d,]+)<.*/', '$1', $line);
		
		print_r ($foo);
	}
}
?>

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