Learning PHP - Part 4 - Lets get conditional
Part 4
Laracasts main site
Laracasts - PHP for beginners
Chapters covered:
Chapter 8 - Booleans
Chapter 9 - Conditionals
Chapter 8 - Booleans
I diverged from laracasts here. I didn’t want to make multiple <li> tags, so I used a conditional which is in the next chapter. The code is as follows:
// index.view.php
<!-- Above HTML omitted for brevity -->
<ul>
<?php foreach ($task as $key => $value) : ?>
<li>
<strong><?= ucwords($key); ?>: </strong>
<?php if ($key == 'completed') {
$value = ($value) ? 'Completed' : 'Incomplete';
}; ?>
<?= $value; ?>
</li>
<?php endforeach; ?>
</ul>
<!-- Below HTML omitted for brevity -->
Yes, I know it looks like a lot but lets highlight the keypart:
<?php if ($key == 'completed') {
$value = ($value) ? 'Completed' : 'Incomplete';
}; ?>
Line 1: <pre><?php if ($key == ‘completed’)</pre>
If the current key equal to the string ‘completed’, then move to the next line, if it’s not equal to ‘completed’, then move past the curly braces.
Line 2: $value = ($value) ? 'Completed' : 'Incomplete';
set $value equal to ‘Completed’ if TRUE set $value equal to ‘Incomplete’ if FALSE
‘Incomplete’
This is called the “ternary operator” should you want to read more
Line 3: }; ?\>
End the block, continue to the end
Note:
I cannot find any definitive documentation as to whether to use:
True vs TRUE vs true
False vs FALSE vs false
All of the above are booleans.
I found this article PHP The Right Way Keyword & Type
This suggests to use true and false for booleans
Chapter 9 - Conditionals
Plain if statement in php:
<?php
if (condition) {
do stuff
} else {
do other stuff
};
If statements that drop down to plain html to make it more readable:
<!-- more HTML -->
<?php if (condition) : ?>
<p><strong>Words</strong></p>
<?php else : ?>
<h1>Do other stuff</h1>
<?php endif; ?>
<!-- more HTML -->
Checking if something is NOT true:
<?php
$boolean = true
if (! $boolean){
// Will run if the value of $boolean == false
} else {
// Will run if the value of $boolean == true
}
This is called the “BANG” operator.
This is all I got for chapter 9. Lets move to chapter 10.