Break query data into several files - php

Question

I want to get table from database and then break output data by files (50 entries in each file): list01.txt, list02.txt... But somehow I got stacked at the question how to break data more effectively.
if ( $result = $mysqli->query($query) ) {
icount = 0;
while ( $row = mysqli_fetch_array($result) ) {
if ( icount % 50 == 0 ) {
$snum = int( icount / 50 );
$filename = 'scripts/spisok'.$snum.'.txt';
$handle = fopen( $filename, 'w' );
}
fwrite( $filename, $row['uname'].';'.$row['email'].'<br />' );
icount++;
}
echo 'ok';
$result->free();
}
Can I just break $result into 50-entry arrays first and then write them all? Sorry, im novice to PHP

Answer 1

You can also use array_chunk
<?php
if ( $result = $mysqli->query( $query ) ) {
$data = array();
while( $row = mysqli_fetch_array( $result ) ) {
$data[] = $row['uname'].';'.$row['email'];
}
$result->free();
// divide an array into a desired number of split lists
$chunks = array_chunk( $data, 50 );
// loop through chunks
foreach( $chunks as $index => $chunk ) {
$file = 'scripts/spisok'.( $index + 1 ).'.txt';
$chunk = implode( "<br />", $chunk );
file_put_contents( $file, $chunk );
// or
/*
$handle = fopen( $file, 'w' );
fwrite( $handle, $chunk );
fclose( $handle );
*/
}
unset( $data, $chunks );
}
?>

Answer 2

There is nothing particularly wrong with what you are doing except for some syntax errors here and there.
Try this :-
if ( $result = $mysqli->query($query) ) {
$icount = 0;
$handle = NULL;
while ( $row = mysqli_fetch_array($result) ) {
if ( $icount % 50 == 0 ) {
if ( $handle !== NULL ) {
fclose($handle);
}
$snum = int( $icount / 50 );
$filename = 'scripts/spisok'.$snum.'.txt';
$handle = fopen( $filename, 'w' );
}
fwrite( $handle, $row['uname'].';'.$row['email'].'<br />' );
$icount++;
}
fclose($handle);
echo 'ok';
$result->free();
}