10 Practical PHP Code Snippets_PHP Tutorial

Keyword Highlight

Copy code The code is as follows:

function highlight($sString, $aWords) {
if (!is_array ($aWords) || empty ($aWords) || !is_string ($sString)) {
return false;
}
$sWords = implode ('|', $aWords);
return preg_replace ('@b('.$sWords.')b@si', '$1', $sString);
}

Get the users of your Feedburner

Copy the code The code is as follows:

function get_average_readers($feed_id,$interval = 7){
$today = date('Y-m-d', strtotime("now"));
$ago = date('Y-m-d', strtotime( "-".$interval." days"));
$feed_url="https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri=".$feed_id."&dates=". $ago.",".$today;
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $feed_url);
$data = curl_exec($ch);
curl_close($ch);
$xml = new SimpleXMLElement($data);
$fb = $xml->feed->entry['circulation '];
$nb = 0;
foreach($xml->feed->children() as $circ){
$nb += $circ['circulation'];
}
return round($nb/$interval);
}

Automatically generate password

Copy code The code is as follows:

function generatePassword($length=9, $strength=0) {
$vowels = 'aeuy';
$consonants = 'bdghjmnpqrstvz';
if ($strength >= 1) {
$consonants .= 'BDGHJLMNPQRSTVWXZ';
}
if ($strength >= 2) {
$vowels .= "AEUY";
}
if ($strength >= 4) {
$consonants .= '23456789';
}
if ($strength >= 8 ) {
$vowels . = '@#$%';
}
$password = '';
$alt = time() % 2;
for ($i = 0; $i < $length; $i++) {
if ($alt == 1) {
$password .= $consonants[(rand() % strlen($consonants))];
$alt = 0;
} else {
$password .= $vowels[(rand() % strlen($vowels))];
$alt = 1;
}
}
return $password;
}

Compress multiple CSS files

Copy code The code is as follows:

header ('Content-type: text/css');
ob_start("compress");
function compress($buffer) {
/* remove comments */
$buffer = preg_replace(' !/*[^*]**+([^/][^*]**+)*/!', '', $buffer);
/* remove tabs, spaces, newlines, etc. * /
$buffer = str_replace(array("rn", "r", "n", "t", ' ', ' ', ' '), '', $buffer);
return $buffer ;
}
/* your css files */
include('master.css');
include('typography.css');
include('grid.css') ;
include('print.css');
include('handheld.css');
ob_end_flush();

Get short URL

Copy code The code is as follows:

function getTinyUrl($url) {
return file_get_contents("http://tinyurl.com/api- create.php?url=".$url);
}

Calculate age based on birthday

Copy code Code As follows:

function age($date){
$year_diff = '';
$time = strtotime($date);
if(FALSE === $time ){
return '';
}
$date = date('Y-m-d', $time);
list($year,$month,$day) = explode("- ",$date);
$year_diff = date("Y") – $year;
$month_diff = date("m") – $month;
$day_diff = date("d") – $day;
if ($day_diff < 0 || $month_diff < 0) $year_diff–;
return $year_diff;
}

Calculate execution time

Copy code The code is as follows:

//Create a variable for start time
$time_start = microtime(true);
// Place your PHP/HTML/JavaScript/CSS/Etc. Here
//Create a variable for end time
$time_end = microtime(true);
//Subtract the two times to get seconds
$time = $time_end - $time_start;
echo 'Script took '.$time.' seconds to execute';

PHP maintenance mode

Copy code The code is as follows:

function maintenance($mode = FALSE){
if($mode){
if(basename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){
header("Location: http://example.com/maintenance.php");
exit;
}
}else{
if(basename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){
header("Location: http://example.com/");
exit;
}
}
}

Prevent CSS styles from being cached

Copy the code The code is as follows:

Add stndrd to the number, etc.

Copy code The code is as follows:

function make_ranked($rank) {
$last = substr( $rank, -1 );
$seclast = substr( $rank, -2, -1 );
if( $last > 3 || $last == 0 ) $ext = 'th';
else if( $last = = 3 ) $ext = 'rd';
else if( $last == 2 ) $ext = 'nd';
else $ext = 'st';
if( $last == 1 && $seclast == 1) $ext = 'th';
if( $last == 2 && $seclast == 1) $ext = 'th';
if( $last == 3 && $ seclast == 1) $ext = 'th';
return $rank.$ext;
}

http://www.bkjia.com/PHPjc/324314.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/324314.htmlTechArticleKeyword highlight copy code The code is as follows: function highlight($sString, $aWords) { if (!is_array ( $aWords) || empty ($aWords) || !is_string ($sString)) { return false; } $sWords = i...