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operator.php
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<?php
$hasil1= -3;
$hasil2=3+5;
$hasil3=8-4.5;
$hasil4=2*5;
$hasil5=3+8/5-3;
$hasil6=10 % 4;
echo "\$hasil1:"; var_dump($hasil1); // $hasil1:int(-3)
echo "<br \>";
echo "\$hasil2:"; var_dump($hasil2); // $hasil2:int(8)
echo "<br \>";
echo "\$hasil3:"; var_dump($hasil3); // $hasil3:float(3.5)
echo "<br \>";
echo "\$hasil4:"; var_dump($hasil4); // $hasil4:int(10)
echo "<br \>";
echo "\$hasil5:"; var_dump($hasil5); // $hasil5:float(1.6)
echo "<br \>";
echo "\$hasil6:"; var_dump($hasil6); // $hasil6:int(2)
?>
<?php
$a = 10;
$a = $a + 5;
$a = $a - 10;
echo "\$a = $a";
echo "<br />";
// sama hasilnya dengan kode berikut:
$b = 10;
$b += 5; // sama dengan $b = $b + 5;
$b -= 10;// sama dengan $b = $b - 10;
echo "\$b = $b";
?>
<?php
echo "1. 12 < 14 = "; var_dump(12<14); // bool(true)
echo "<br />";
echo "2. 14 < 14 = "; var_dump(14<14); // bool(false)
echo "<br />";
echo "3. 14 <= 14 = "; var_dump(14<=14); // bool(true)
echo "<br />";
echo "4. 10 <> '10' = "; var_dump(10<>'10'); // bool(false)
echo "<br />";
echo "5. 10 == '10' = "; var_dump(10=='10'); // bool(true)
echo "<br />";
echo "6. 10 === '10' = "; var_dump(10==='10'); // bool(false)
echo "<br />";
echo "7. '150' == '1.5e2' = "; var_dump('150'=='1.5e2'); // bool(true)
echo "<br />";
echo "8. 'duniailkom' == 0 = "; var_dump('duniailkom'==0); // bool(true)
echo "<br />";
?>
<?php
echo "<h3>Postincrement</h3>";
$a = 5;
echo "\$a = $a <br />";
echo "\$a akan bernilai 5: " . $a++ . " (\$a++)<br />";
echo "\$a akan bernilai 6: " . $a . "<br />";
echo "<h3>Preincrement</h3>";
$a = 5;
echo "\$a = $a <br />";
echo "\$a akan bernilai 6: " . ++$a . " (++\$a)<br />";
echo "\$a akan bernilai 6: " . $a . "<br />";
echo "<h3>Postdecrement</h3>";
$a = 5;
echo "\$a = $a <br />";
echo "\$a akan bernilai 5: " . $a-- . " (\$a--)<br />";
echo "\$a akan bernilai 4: " . $a . "<br />";
echo "<h3>Predecrement</h3>";
$a = 5;
echo "\$a = $a <br />";
echo "\$a akan bernilai 4: " . --$a . " (--\$a)<br />";
echo "\$a akan bernilai 4: " . $a . "<br />";
?>
<?php
$hasil1 = true and false;
echo '$hasil1 = ';
echo var_dump($hasil1)."<br/>"; // $hasil1 = bool(true)
$hasil2 = (true and false);
echo '$hasil2 = ';
echo var_dump($hasil2)."<br/>"; // $hasil2 = bool(false)
$hasil3 = (true xor false);
echo '$hasil3 = ';
echo var_dump($hasil3)."<br/>"; // $hasil3 = bool(true)
$hasil4 = (false or true && false);
echo '$hasil4 = ';
echo var_dump($hasil4)."<br/>"; // $hasil4 = bool(false)
$a=true;
$b=false;
$hasil5 = ($a and $b || $a or $b);
echo '$hasil5 = ';
echo var_dump($hasil5); // $hasil5 = bool(true)
?>
<?php
$a = "Hello ";
$b = "World!";
$a .= $b;
echo $a; // Hello World!
echo "<br />";
$a = "belajar ";
$b = "PHP ";
$c = "di Politeknik Negeri Jember";
$hasil= "Saya sedang ".$a.$b.$c;
echo $hasil; // Saya sedang belajar PHP di Politeknik Negeri Jember
?>
<?php
$a = "Hello ";
$hasil = "{$a} World!";
echo $hasil; // Hello World!
echo "<br />";
$a = "belajar ";
$b = "PHP ";
$c = "di Politeknik Negeri Jember";
$hasil= "Saya sedang {$a}{$b}{$c}";
echo $hasil; // Saya sedang belajar PHP di Politeknik Negeri Jember
?>