PHP Bulk Replace content or all file contents under a specified directory _php tutorial

To replace the contents of a string we just use PHP-related functions, such as strstr,str_replace, regular expressions, then we have to replace the contents of all files in the directory will need to go through the directory and then open the file and then use the above function replaced. First we look at the most basic

The STRTR () function converts a specific character in a string.

Grammar
STRTR (string,from,to) or

STRTR (String,array)

*/

The code is as follows	Copy Code
$addr =strtr ($addr, "", "Aao"); The first method of invocation $trans =array ("Hello" = "hi", "hi" = "Hello"); Defining a Transform Array echo strtr ("Hi all, I said hello", $trans); The second method of invocation Normal string Echo strtr ("Hilla Warld", "ia", "eo"); Array $arr = Array ("Hello" = "hi", "World" = "Earth"); echo strtr ("Hello World", $arr);

/*
If the from and to lengths are different, the format is the shortest length.

Let's look at a simple function.

+------A replacement function I wrote previously

The code is as follows	Copy Code
function file_modify ($search _contents, $replace _contents, $filename) { $fp = file_get_contents ($filename); $new _FP = Str_replace ($search _contents, $replace _contents, $fp); File_put_contents ($filename, $new _fp); } +------Usage File_modify (' SDF hjhj ', ' sdf_test hjhj_test ', ' test10.html ');

or directly with

Or just use this.

The code is as follows	Copy Code
Preg_replace (' | () (^<]+) () |isu ', "${1}". The content after the replacement. "$", $str); Preg_replace (' | () (^<]+) () |isu ', "${1}". The content after the replacement. "$", $str);

All the questions I said above will only replace a file inside, then I want to replace a site all directories in the file specified characters, then we look at the following function

The code is as follows

Copy Code

if (Isset ($_get[' dir ')) {//Set file directory $basedir =$_get[' dir ']; }else{ $basedir = '. '; } $auto = 1; Checkdir ($basedir); function Checkdir ($basedir) { if ($dh = Opendir ($basedir)) { while (($file = Readdir ($DH))!== false) { if ($file! = '. ' && $file! = ' ... ') { if (!is_dir ($basedir. " /". $file)) { echo "FileName: $basedir/$file". Checkbom ("$basedir/$file"). " "; }else{ $dirname = $basedir. " /". $file; Checkdir ($dirname); } } } Closedir ($DH); } } function Checkbom ($filename) { Global $auto; $contents = file_get_contents ($filename); $charset [1] = substr ($contents, 0, 1); $charset [2] = substr ($contents, 1, 1); $charset [3] = substr ($contents, 2, 1); if (Ord ($charset [1]) = = 239 && ord ($charset [2]) = = 187 && ord ($charset [3]) = = 191) { if ($auto = = 1) { $rest = substr ($contents, 3); Rewrite ($filename, $rest); Return ("BOM found, automatically removed._http://www.hzhuti.com/nokia/c6/"); } else { Return ("BOM found."); } } else return ("BOM not Found."); } function rewrite ($filename, $data) { $filenum = fopen ($filename, "w"); Flock ($filenum, LOCK_EX); Fwrite ($filenum, $data); Fclose ($filenum); } ?>

This is especially handy if we can replace all the contents of all the files in the specified directory as soon as we run.

http://www.bkjia.com/PHPjc/631636.html www.bkjia.com true http://www.bkjia.com/PHPjc/631636.html techarticle to replace the contents of a string we just use PHP-related functions, such as strstr,str_replace, regular expressions, then we have to replace the contents of all files in the directory will need to go through the directory before ...

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