concat 2 binary files?

[herc777@hotmail.com]

I want to manipulate binary files.

this was just a test to concatinate 2 text files but it said
file_put_conten ts was undefined. the second parameter is suppoed to be
'mixed data', no idea what that is.

<?php
$t1 = file_get_conten ts('test1.txt') ;
$t2 = file_get_conten ts('test2.txt') ;
$result = file_put_conten ts('test3.txt', $t1 . $t2);
?>

But this was just a test anyway since file_get_conten ts uses strings,
can someone just give me the code to concat 2 binary files? I'll be
manipulating the files before I concatinate them, so putting the data
into 2 arrays of bytes 1st would be best.

Herc

[Janwillem Borleffs]

Re: concat 2 binary files?

herc777@hotmail .com wrote:
[color=blue]
> I want to manipulate binary files.
>
> this was just a test to concatinate 2 text files but it said
> file_put_conten ts was undefined. the second parameter is suppoed to be
> 'mixed data', no idea what that is.
>[/color]

The file_put_conten ts() function is only supported on PHP v >= 5; the
indication mixed data means that it can be anything from a scalar to an
array.
[color=blue]
> But this was just a test anyway since file_get_conten ts uses strings,
> can someone just give me the code to concat 2 binary files? I'll be
> manipulating the files before I concatinate them, so putting the data
> into 2 arrays of bytes 1st would be best.
>[/color]

An alternative for file_put_conten ts on PHP 4.x would be to apply fopen
with ``wb'' as the switch and fputs for writing:

$fp = fopen("somenewf ile", "wb");
fputs($fp, $data_1 . $data_2);
fclose($fp);

Since file_get_conten ts() is binary safe, the binary data will be
untouched and the merge successful, provided that the binary data
actually can be merged this way...


JW

[Steve]

Re: concat 2 binary files?

[color=blue]
> I want to manipulate binary files.[/color]

Add error handling as appropriate...


$strFile1 = "blue.bin";
$strFile2 = "green.bin" ;
$strFile3 = "bluegreen.bin" ;


// open for read/binary-safe
$objFH = fopen( $strFile1, "rb" );
$strBuffer1 = fread( $objFH, filesize( $strFile1 ) );
fclose( $objFH );


// open for read/binary-safe
$objFH = fopen( $strFile2, "rb" );
$strBuffer2 = fread( $objFH, filesize( $strFile2 ) );
fclose( $objFH );


// ...manipulate buffers here...
$strBuffer3 = $strBuffer1 . $strBuffer2;


// open for write/binary-safe
$objFH = fopen( $strFile3, "wb" );
fwrite( $objFH, $strBuffer3 );
fclose( $objFH );


---
Steve

[herc777@hotmail.com]

Re: concat 2 binary files?

Thanks, if I join your two answers together I get exactly what I want!

Herc