PHP - Esempio di operatori di confronto
Prova a seguire l'esempio per comprendere tutti gli operatori di confronto. Copia e incolla il seguente programma PHP nel file test.php e tienilo nella root dei documenti del tuo server PHP e sfoglialo usando qualsiasi browser.
<html>
<head>
<title>Comparison Operators</title>
</head>
<body>
<?php
$a = 42;
$b = 20;
if( $a == $b ) {
echo "TEST1 : a is equal to b<br/>";
}else {
echo "TEST1 : a is not equal to b<br/>";
}
if( $a > $b ) {
echo "TEST2 : a is greater than b<br/>";
}else {
echo "TEST2 : a is not greater than b<br/>";
}
if( $a < $b ) {
echo "TEST3 : a is less than b<br/>";
}else {
echo "TEST3 : a is not less than b<br/>";
}
if( $a != $b ) {
echo "TEST4 : a is not equal to b<br/>";
}else {
echo "TEST4 : a is equal to b<br/>";
}
if( $a >= $b ) {
echo "TEST5 : a is either greater than or equal to b<br/>";
}else {
echo "TEST5 : a is neither greater than nor equal to b<br/>";
}
if( $a <= $b ) {
echo "TEST6 : a is either less than or equal to b<br/>";
}else {
echo "TEST6 : a is neither less than nor equal to b<br/>";
}
?>
</body>
</html>Questo produrrà il seguente risultato:
TEST1 : a is not equal to b
TEST2 : a is greater than b
TEST3 : a is not less than b
TEST4 : a is not equal to b
TEST5 : a is either greater than or equal to b
TEST6 : a is neither less than nor equal to b