Tryangled Dev

glob(string pattern,flags)

pattern->required, to specify the pattern search
flags->optional

Function returns an array of filenames or directories if it is matched in a specified pattern

otherwise it will returns an empty array.

example:

$temp_directory=glob(”*.*”);
The above function returns the array of all filenames placed inside the folder.

$temp_images=glob(images.”/”.”*.jpg*”);
print_r($temp_images);

The above function returns the array of all filenames who are all contains the extension as ‘jpg’ placed inside the image ‘folder.

Output like this;

Array ( [0] => images/webdesign.jpg
[1] => images/web_development.jpg )

Function returns ‘true’  if it is moved all the content from source folder to destination folder otherwise returns ‘false’

Function Definition 

function copyr($source, $dest)
{
// Simple copy for a file
if (is_file($source)) {
return copy($source, $dest);
}

// Make destination directory
if (!is_dir($dest)) {
mkdir($dest);
}

// Loop through the folder
$dir = dir($source);
while (false !== $entry = $dir->read()) {
// Skip pointers
if ($entry == ‘.’ || $entry == ‘..’) {
continue;
}

// Deep copy directories
if ($dest !== “$source/$entry”) {
copyr(”$source/$entry”, “$dest/$entry”);
}
}

// Clean up
$dir->close();
return true;
}

Function Call

$folder_move=copyr(source,destination);

source->source folder name

destination->destination folder name

file_exists(string filename)

filename->To specify the full path of the file
Function returns ‘true’ if the file exist in the specified path, otherwise it will returns ‘false’.

<?php
$filename = ‘/optional/file_path/file_name.txt’;

if (file_exists($filename)) {
echo “File Exists”;
} else {
echo “File does not Exist”;
}
?>

isNaN(Number)

Number->Required.

function returns ‘true’ if a number is not a numeric otherwise it will returns false.

example:

<script type=”text/javascript”>

document.write(isNaN(67)+ “<br />”);
document.write(isNaN(-4.34)+ “<br />”);
document.write(isNaN(”Tryangled”)+ “<br />”);
document.write(isNaN(”2007/12/23″)+ “<br />”);
</script>

The above script will return like this.
false
false
true
true

DATEDIFF(exp1,exp2)

Function returns a value in day(s)  from one date to other date.
exp1 and exp2 are either date or datetimestamp expressions.
exp2 subtracted from exp1 like(exp1-exp2). Only the date parts of the values are used in the  calculation.

example:

SELECT id,name, datediff( Now( ) , enddate) AS Numofdays FROM `events` WHERE datediff( Now( ) , enddate) <30 LIMIT 0 , 30

Now() - Returns the datetimestamp 2007-12-21 10:05:42
enddate - date format like 2007-12-12
The above query will returns id,name and no of days  who are all having day(s) as less than 30