PHP Moving an array into different text files? - php

Question

I've been given a list of data and I need to split it and move it into different text files. I've tried a few things so far but cant seem to get it to work.
<?php
/*
*order the file based on surname (col 2)
*create two new text files - class A and B
*split the source text into two equal lists
*format them: ID, firstname, lastname. all words must be first letter caps
*move each list to a new file.
*close files
*/
//This function converts every attribute/variable passed to it into a sentence case
function Uppercase($convert) {
return ucwords($convert);
}
//This function compares two items to see which one is higher
//src: http://php.net/manual/en/function.usort.php
function cmp($a, $b) {
$compResult = strcmp($a[1], $b[1]);
if ($compResult == 0) {
return strcmp($a[2], $b[2]);
}else {
return $compResult;
}
}
//This function gets rid of the whitespace that is not needed
function cut($c) {
return trim($c, " \n\r\0");
}
//open file
$myfile = fopen("students.csv", "r");
echo "A";
//initialise the array, giving them 'headers'
$array = array();
echo "B";
//sort through the data, moving it to a multidimentional array and setting the first letter in each item to uppercase
$i=0;
while(!feof($myfile)){
$line = fgets($myfile);
$pieces = explode(",", $line);
$array[$i][0] = $pieces[0];
$array[$i][1] = cut(Uppercase($pieces[2]));
$array[$i][2] = cut(Uppercase($pieces[1]));
$i++;
}
echo "C";
//sort the file by the second item in the array
usort($array, "cmp");
echo array_shift($array)."<br>";
echo "D";
//create class files
$fileA = fopen("Class 1.txt", "w");
$fileB = fopen("Class 2.txt", "w");
echo "E";
//get size of array
$arraylength = count($array);
//half the array length(
$half = ceil($arraylength /= 2);
//echo $half;
//echo $arraylength."</br>";
echo "F";
echo "<pre>";
print_r($array);
echo "</br>";
//move the first class into a text file
$k = 0;
foreach ($array as $key){
echo $key[0];
if ($k < $half) {
$current = file_get_contents($fileA);
$current .= $key;
}
}
echo "G";
fclose($fileA);
fclose($fileB);
fclose($myfile);
echo "H";
When this runs, I get the following line recurring for each item in the array
Warning: file_get_contents() expects parameter 1 to be a valid path, resource given in C:\xampp\htdocs\PHPLabs\EE1600Assignment.php on line 93
The document itself has 25 items that look like this:
123, billy, bobs
Any help is appreciated. Thank you

Answer 1

file_get_contents expects a file path, but you are providing a file handler. You probably want instead fgets($fileA).
Alternatively, if you want to read the complete file (it's not entirely clear from your code), you can use fread($fileA).

Answer 2

According to the documentation, file_get_contents requires a path to the file you want to open (as per the error message you're getting - file_get_contents() expects parameter 1 to be a valid path).
You're passing in $fileA - which you created earlier using an fopen call
fopen("Class 1.txt", "w");