PHP Basics: IF statements and operators: IF statement basics (14/35)

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13:06

In php 7.1.1 we get

> Notice: Use of undefined constant name - assumed 'name' in

but it's still running. No notice on previous versions.

alberto

Hi Alex, does it matter if u initialize a variable to "" instead of null since both evaluate to false? Thanks

MrRossss

squiggly OR curly brackets { }. square brackets [ ]. round brackets ( ).

dsulvadarius

I am getting the following error - PHP 7.2.2 - Notice: Undefined index: $weekday in on line 14 (echo row). I have called $dayOfWeek - $weekday. Please can you assist.

<?php

$weekday = 1;

$daysofweek = [
1 => 'Monday',
2 => 'Tusday',
3 => 'Wednesday',
4 => 'Thursday',

];

if (in_array($weekday, array_keys($daysofweek))) {
echo $daysofweek['$weekday'];
}
else {
echo ' Not a valid day';
}

lynnehorne

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