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108 | <html>
<head>
</head>
<body>
<?php
$true = true;
$false = false;
?>
<h1>Table: Testing Expressions with Logical Operators</h1>
<table border='1px solid'>
<tr><th>Name</th><th>Example</th><th>Result</th></tr>
<tr>
<td>And</td>
<td>$true && $false</td>
<td>
<?php
if ($true && $false)
{
echo 'Both $true and $false are true';
}
else
{
echo 'One of the values $true or $false are not true';
}
?>
</td>
</tr>
<tr>
<td>|| (or)</td>
<td>$true || $false</td>
<td>
<?php
if ($true || $false)
{
echo 'One of the values $true or $false are true';
}
else
{
echo 'Neither of the values $true or $false are true';
}
?>
</td>
</tr>
<tr>
<td>and</td>
<td>$true and $false</td>
<td>
<?php
if ($true and $false)
{
echo 'Both of the values $true and $false are true';
}
else
{
echo 'One of the values $true or $false are not true';
}
?>
</td>
</tr>
<tr>
<td>Or</td>
<td>$true or $false</td>
<td>
<?php
if ($true or $false){
echo 'One of the values $true or $false are true';
}else{
echo 'Neither of the values $true or $false are true';
}
?>
</td>
</tr>
<tr>
<td>Xor</td>
<td>$true xor $false</td>
<td>
<?php
if ($true xor $false)
{
echo 'One of the values $true or $false are true, but not both';
}
else
{
echo 'One of the values $true or $false are not true, or both are true';
}
?>
</td>
</tr>
<!-- ! $aNotTRUE if $a is not TRUE. -->
<tr>
<td>!</td>
<td>!$true</td>
<td>
<?php
if (!$true)
{
echo '$true is not true';
}
else
{
echo '$true is true';
}
?>
</td>
</tr>
</table>
</body>
<html>
|