Example application of saving arrays in file format under PHP_PHP Tutorial

I have used two methods:
The first is array serialization, which is simple, but more troublesome when calling; the second is to save it in a standard array format, which is troublesome when saving but troublesome when calling. Simple.
First method:
PHP code

Copy code The code is as follows:

$file=". /cache/file.cache";
$array = array("color" => array("blue", "red", "green"),
"size" => array("small ", "medium", "large"));
//Cache
file_put_contents($file,serialize($array));//Write cache
//Read cache
$ handle = fopen($file, "r");
$cacheArray = unserialize(fread($handle, filesize ($file)));

Second method:
It’s more complicated. Let’s post a few functions first:

Copy code The code is as follows:

//Write
function cache_write ($name, $var, $values) {
$cachefile = S_ROOT.'./data/data_'.$name.'.php';
$cachetext = ""if(!defined('CHECK_CODE')) exit('Access Denied');rn".
'$'.$var.'='.arrayeval($values).
"rn?> ;";
if(!swritefile($cachefile, $cachetext)) {
exit("File: $cachefile write error.");
}
}
//Array conversion into a string
function arrayeval($array, $level = 0) {
$space = '';
for($i = 0; $i <= $level; $i++) {
$space .= "t";
}
$evaluate = "Arrayn$space(n";
$comma = $space;
foreach($array as $key => $val) {
$key = is_string($key) ? '''.addcslashes($key, ''\').''' : $key;
$val = !is_array($val) && (!preg_match("/^-?d+$/", $val) || strlen($val) > 12) ? '''.addcslashes($val, ''\').''' : $ val;
if(is_array($val)) {
$evaluate .= "$comma$key => ".arrayeval($val, $level + 1);
} else {
$evaluate .= "$comma$key => $val";
}
$comma = ",n$space";
}
$evaluate .= "n$space) ";
return $evaluate;
}
//Write file
function swritefile($filename, $writetext, $openmod='w') {
if(@$fp = fopen($filename, $openmod)) {
flock($fp, 2);
fwrite($fp, $writetext);
fclose($fp);
return true;
} else {
runlog('error', "File: $filename write error.");
return false;
}
}

The calling method is very Simple:
PHP code

Copy code The code is as follows:

cache_write('file', 'arrayName', $ array);

Use the standard include format:
PHP code

Copy code The code is as follows:

@include ('./data/data_cache.php');
//Array reordering
sort($arrayName);

http://www.bkjia.com/PHPjc/321137.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/321137.htmlTechArticleI have used two methods: The first is array serialization, which is simple, but more troublesome when calling; The second is to save it in a standard array format, which is troublesome to save but easy to call...