Fopen() and file_get_contents() in PHP are applications and differences.
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The copy code is as follows:
$file=fopen ("11.txt", "r") or exit ("Unable to open file!"); / / fopen opens the file and shows that it cannot be opened if it does not exist.
$filesize = filesize ("11.txt"); / / calculate the file size
Echo fread ($file,$filesize); / / read the file
Fclose ($file); / / close the file
Example of fopen () opening a file
Whether fclose () is used or not is not reflected on the page, but if you don't use fclose (), the opened file will always take up resources.
Example of fopen () opening a URL:
The copy code is as follows:
$web= "http://www.baidu.com"; / / http:// cannot be loaded without adding it.
$fp=fopen ($web,'r')
If ($fp) {
While (! feof ($fp)) {
Echo fgets ($fp)
}
}
Feof () checks whether the file reaches the end, returns 1 to the end, and does not return 0
Fgets () is read line by line.
File_get_contents () example
The copy code is as follows:
$web = "http://www.baidu.com"
$fcontent=file_get_contents ($web)
Echo $fcontent
Obviously file_get_contents () is simpler.
And in the course of the experiment, I found that if you don't add www in $web = "". Will jump directly, add www. Will be loaded on this page.
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