The results of the include| difference include.php3 are:
This is the value of a variable in the Inc1.inc file!
This is the value of a variable in the Inc2.inc file!
The $int variable value in the Inc1.inc file is 1!
The results of the REQUIRE.PHP3 operation are:
This is the value of a variable in the Inc1.inc file!
The $int variable value in the Inc1.inc file is 2!
You can see that in the Require.php3, the $int has changed to 2, That is, the statement in Inc1.inc is executed 2 times, so it seems that the require statement is only interpreted once in the loop, and the location of the require statement is replaced and run with the Require file content, and the include statement is run every time in the loop.
[Sonymusic] Added:
Require is only executed once, no, that's not appropriate. It should be said that require is the first alternative to the contents of the specified file to be replaced, and then run, so it does not know you set up a for loop. The include statement, when it is executed, and what the contents of the specified file are brought in, continues to execute.
INCLUDE.PHP3:
<body>
?
For ($i =1 $i <=2; $i + +) {
Include ("Inc$i.inc");
}
echo $var 1;
echo $var 2;
The $int variable value in the Echo ' Inc1.inc file is '. $int. "！ <br> ";
?>
</body>
REQUIRE.PHP3:
<body>
?
For ($i =1 $i <=2; $i + +) {
Require ("Inc$i.inc");
}
echo $var 1;
echo $var 2;
The $int variable value in the Echo ' Inc1.inc file is '. $int. "！ <br> ";
?>
</body>
Inc1.inc:
?
$var 1 = "This is the value of a variable in the Inc1.inc file!" <br> ";
if (Isset ($int)) {
$int + +;
}
else{
$int = 1;
}
?>
Inc2.inc:
?
$var 2 = "This is the value of a variable in the Inc2.inc file!" <br> ";
?>
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