A PHP skill test

gistfile1.txt

<?php
// please fill-in the body of the functions
// using methods to produce the suggested output

/* function tests */
//echo remove_nonAtoZ("BA'3Ndf$%^A&*(nN)A")."</br>"."</br>";
//echo first_char_caps('TEST DATA bleh Orange')."</br>"."</br>";
//echo date_8_hours_ago()."</br>"."</br>";
//echo table_columns(array('apple', 'orange', 'monkey', 'potato', 'cheese', 'badger', 'turnip'), 2)."</br>"."</br>";
//
//$filename = 'coverage.csv';
//$output = load_csv($filename);
//var_dump($output)."</br>";

function remove_nonAtoZ($input) {
	/*
	// example data
	$input = "BA'3Ndf$%^A&*(nN)A";
	$output = "BANANA";
	*/
}

function first_char_caps($input) {
	/*
	// example data
	$input = 'TEST DATA bleh Orange';
	$output = 'Test Data Bleh Orange';
	*/
}

function load_csv($filename) {
	// load data from a file with three
	// comma-separated text fields into a MySQL table
	// called csv_data		
}	

function date_8_hours_ago() {
	// return a string of the date and time
	// eight hours back from now
	// e.g.
	//return "Wed 1st Jan 5:23am";
}

function email_postvars() {
	// example data
	/*$_POST = array('forename' => 'Dave',
		'surname' => 'Johnson',
		'email' => 'dave.johnson@example.com',
		'extra_age' => '24',
		'extra_hobbies' => 'Cricket, cycling and chess',
		'extra_height' => '2 metres')
	*/
	// output - an email
	// Email header
	// Email body (Additional info = any fields with 'extra_' prefix)
}

function table_columns($input, $cols) {
	/*
	// example data
	$input = array('apple', 'orange', 'monkey', 'potato', 'cheese', 'badger', 'turnip');
	$cols = 2;

	$output = <<<OUT
	<table>
	<tr>
		<td>apple</td>
		<td>cheese</td>
	</tr>
	<tr>
		<td>orange</td>
		<td>badger</td>
	</tr>
	<tr>
		<td>monkey</td>
		<td>turnip</td>
	</tr>
	<tr>
		<td>potato</td>
		<td></td>
	</tr>
	</table>
	OUT;
	*/
}

function add_accesskeys($input) {
	/*
	// example data
	$input = array(
		array('filename' => 'home.html',
			'title' => 'home page'),
		array('filename' => 'products.html',
			'title' => 'products'),
		array('filename' => 'contact.html',
			'title' => 'contact'),
		array('filename' => 'prices.html',
			'title' => 'prices'));

	$output = <<<OUT
	<ul>
	<li><a href="home.html" accesskey="h"><em>h</em>ome page</a></li>
	<li><a href="products.html" accesskey="p"><em>p</em>roducts</a></li>
	<li><a href="contact.html" accesskey="c"><em>c</em>ontact</a></li>
	<li><a href="prices.html" accesskey="r">p<em>r</em>ices</a></li>
	</ul>
	OUT;
		*/
}

function returnKey($array) {
	/*example data
	$array[0] = 3, $array[1] = -2, $array[2] = 5, $array[3] = 3, $array[4] = 1, $array[5] = -2, $array[6] = 7
	//function
	return 3;
	
	return index (int) 3 because sum of all values before $array[3] (6) equal sum of all values above $array[3] (6)
	write function that will return first index of any array that meets the above condition, if no match -1;
	assume indices are all integers ordered by size ASC already and values are all numbers;
	*/	
}
?>