PHP Snippets
1 ... « 7 8 9 10 11 »gradient_text
Information
(PHP Version >= 3.0.6)Functions used in this snippet: str_replace, strlen, hexdec, substr, dechex, implode.
Description
str gradient_text( str str, str color1, str color2, str html )
Outputs a string as a gradient from color color1 to color color2. It outputs the colors based on the tag of type html.
Snippet
<?php
function gradient_text($str, $color1, $color2, $html='span'){
$color1 = str_replace('#', '', $color1);
$color2 = str_replace('#', '', $color2);
$color1 = strlen($color1) === 3 ? $color1{0} . $color1{0} . $color1{1} . $color1{1} . $color1{2} . $color1{2} : $color1;
$color2 = strlen($color2) === 3 ? $color2{0} . $color2{0} . $color2{1} . $color2{1} . $color2{2} . $color2{2} : $color2;
$endstr = '<' . $html . ' style="color:#' . $color1 . ';">' . $str{0} . '</' . $html . '>';
$colors[0] = hexdec(substr($color2, 0, 2));
$colors[1] = hexdec(substr($color2, 2, 2));
$colors[2] = hexdec(substr($color2, 4, 2));
$colors[3] = hexdec(substr($color1, 0, 2));
$colors[4] = hexdec(substr($color1, 2, 2));
$colors[5] = hexdec(substr($color1, 4, 2));
for($i=1; $i<strlen($str) - 1; $i++){
if($str{$i} != ' '){
$color = array();
$color[] = dechex(($colors[0] - $colors[3]) / strlen($str) * $i + $colors[3]);
$color[] = dechex(($colors[1] - $colors[4]) / strlen($str) * $i + $colors[4]);
$color[] = dechex(($colors[2] - $colors[5]) / strlen($str) * $i + $colors[5]);
$color[0] = strlen($color[0]) < 2 ? $color[0] . $color[0] : $color[0];
$color[1] = strlen($color[1]) < 2 ? $color[1] . $color[1] : $color[1];
$color[2] = strlen($color[2]) < 2 ? $color[2] . $color[2] : $color[2];
$endstr .= '<' . $html . ' style="color:#' . implode($color,'') . '">' . $str{$i} . '</' . $html . '>';
}else{
$endstr .= ' ';
}
}
$endstr .= '<' . $html . ' style="color:#' . $color2 . ';">' . $str{(strlen($str)-1)} . '</' . $html . '>';
return $endstr;
}
?>
Example
gradient_text Can be used in the following way:
<?php
echo gradient_text('red will turn into blue', '#FF0000', '#0000FF');
// out puts "red will turn into blue" as a gradient from red to blue
echo gradient_text('red will turn into blue', 'f00', '00f', 'font');
// outputs the same as above, but uses a font tag instead of span
// ( i dunno why you would do this but just in case you really want to go against good coding standards)
?>
get_world_pop
Information
(PHP Version >= 3.0.12)Functions used in this snippet: date, strtotime, time, number_format.
Description
str get_world_pop( [int seconds[, bool english]] )
calling get_world_pop with no arguements will return a formatted string of the estimated current world population at that second. If you supply the seconds parameter it will supply the world population for the date as long as it is between the years of 2005 and 2048. If the english value is set to false the formatted string will have periods instead of commas seperating thousands and hundreds etc.
Snippet
<?php
function get_world_pop($seconds=NULL,$english=true){
$pops = array(
"2005" => array( "start" => 6451058790, "added" => 74427813),
"2006" => array( "start" => 6525486603, "added" => 74629207),
"2007" => array( "start" => 6600115810, "added" => 74940532),
"2008" => array( "start" => 6675056342, "added" => 75228043),
"2009" => array( "start" => 6750284385, "added" => 75466071),
"2010" => array( "start" => 6825750456, "added" => 75688866),
"2011" => array( "start" => 6901439322, "added" => 75802963),
"2012" => array( "start" => 6977242285, "added" => 75615963),
"2013" => array( "start" => 7052858248, "added" => 75167390),
"2014" => array( "start" => 7128025638, "added" => 74490498),
"2015" => array( "start" => 7202516136, "added" => 73766792),
"2016" => array( "start" => 7276282928, "added" => 73055605),
"2017" => array( "start" => 7349338533, "added" => 72230253),
"2018" => array( "start" => 7421568786, "added" => 71289623),
"2019" => array( "start" => 7492858409, "added" => 70235773),
"2020" => array( "start" => 7563094182, "added" => 69180831),
"2021" => array( "start" => 7632275013, "added" => 68144353),
"2022" => array( "start" => 7700419366, "added" => 67028250),
"2023" => array( "start" => 7767447616, "added" => 65862519),
"2024" => array( "start" => 7833310135, "added" => 64679285),
"2025" => array( "start" => 7897989420, "added" => 63596858),
"2026" => array( "start" => 7961586278, "added" => 62635490),
"2027" => array( "start" => 8024221768, "added" => 61689308),
"2028" => array( "start" => 8085911076, "added" => 60746079),
"2029" => array( "start" => 8146657155, "added" => 59800227),
"2030" => array( "start" => 8206457382, "added" => 58925303),
"2031" => array( "start" => 8265382685, "added" => 58132001),
"2032" => array( "start" => 8323514686, "added" => 57333600),
"2033" => array( "start" => 8380848286, "added" => 56512857),
"2034" => array( "start" => 8437361143, "added" => 55666984),
"2035" => array( "start" => 8493028127, "added" => 54846652),
"2036" => array( "start" => 8547874779, "added" => 54058633),
"2037" => array( "start" => 8601933412, "added" => 53249683),
"2038" => array( "start" => 8655183095, "added" => 52414904),
"2039" => array( "start" => 8707597999, "added" => 51542658),
"2040" => array( "start" => 8759140657, "added" => 50686755),
"2041" => array( "start" => 8809827412, "added" => 49847392),
"2042" => array( "start" => 8859674804, "added" => 48957732),
"2043" => array( "start" => 8908632536, "added" => 48019825),
"2044" => array( "start" => 8956652361, "added" => 47040969),
"2045" => array( "start" => 9003693330, "added" => 46074635),
"2046" => array( "start" => 9049767965, "added" => 45123225),
"2047" => array( "start" => 9094891190, "added" => 44148176),
"2048" => array( "start" => 9139039366, "added" => 43161841));
$yearly = 31535999; // seconds in a year usually
if($seconds !== NULL){
$year = date('Y',$seconds);
$thisyear = $seconds - strtotime('jan 1 ' . $year . ' 00:00');
}else{
$year = date('Y');
$thisyear = time() - strtotime('jan 1 ' . $year . ' 00:00');
}
$sep = $english ? ',' : '.';
return number_format(($pops[$year]['start'] + (($thisyear / $yearly) * $pops[$year]['added'])),0,'.',$sep);
}
?>
Example
get_world_pop Can be used in the following way:
<?php
echo get_world_pop();
// returns the current world population formatted like 6,578,968,451
echo get_world_pop(strtotime('July 6 2010'));
// returns the world estimated world populating on july 6 2010
echo get_world_pop(NULL,false);
// returns the current world population formatted like 6.578.968.451
?>
upload_files
Information
(PHP Version >= 4.0.3)Functions used in this snippet: strlen, is_array, is_dir, is_writable, isset, sizeof, in_array, substr, strtolower, strrpos, move_uploaded_file.
Description
array upload_files( str form, str location, mixed types )
Upload any file that matches types filetypes, and send the files from the form name form to the file location of location.
form is the name of the form from the page where the uploads are coming from. This is the only required arguement to the function.
location defaults to the current working directory, but it can be set to any other directory that can be written to.
types are filetype extensions that are allowed. These must be lower case. The types can be either a array or a str. If you want to set types but leave the default location you can set location to NULL
The function returns an array of what happened with the upload. The returned values are mimetype, error code, whether the file was uploaded, file matches the types, filename, and filesize.
Note: This only checks file extensions. You may want to add additional checks of mimetypes to restrict data being loaded onto your server.
Snippet
<?php
function upload_files($form, $location='./', $types=array()){
$ret = array();
$location = $location === NULL || $location === '' ? './' : $location;
$location = $location{(strlen($location) - 1)} === '/' ? $location : $location . '/';
$types = is_array($types) ? $types : array($types);
if(!is_dir($location) || !is_writable($location) || !isset($_FILES[$form])){
return;
}
if(is_array($_FILES[$form]['error'])){
foreach($_FILES[$form]['error'] as $key=>$value){
$ret[$key] = array('uploaded'=>false, 'error'=>$value, 'typematch'=>false, 'name'=>$_FILES[$form]['name'][$key], 'mime'=>$_FILES[$form]['type'][$key], 'size'=>$_FILES[$form]['size'][$key]);
if($value == UPLOAD_ERR_OK) {
$ret[$key]['uploaded'] = true;
if(sizeof($types) === 0 || in_array(substr($_FILES[$form]['name'][$key], strtolower(strrpos($_FILES[$form]['name'][$key], '.')+1)), $types)){
move_uploaded_file( $_FILES[$form]['tmp_name'][$key], $location . $_FILES[$form]['name'][$key]);
$ret[$key]['typematch'] = true;
}
}
}
}else{
$ret = array('uploaded'=>false, 'error'=>$_FILES[$form]['error'], 'typematch'=>false, 'name'=>$_FILES[$form]['name'], 'mime'=>$_FILES[$form]['type'], 'size'=>$_FILES[$form]['size']);
if($_FILES[$form]['error'] == UPLOAD_ERR_OK) {
$ret['uploaded'] = true;
if(sizeof($types) === 0 || in_array(strtolower(substr($_FILES[$form]['name'], strrpos($_FILES[$form]['name'], '.')+1)), $types)){
move_uploaded_file( $_FILES[$form]['tmp_name'], $location . $_FILES[$form]['name']);
$ret['typematch'] = true;
}
}
}
return $ret;
}
?>
Example
upload_files Can be used in the following way:
<?php
// make form as a single file upload with formname 'file'
$files = upload_files('file');
// uploads the single file to the current directory no matter the filetype
// make form as a single upload with formname 'image'
$files = upload_files('image', './images/', array('gif', 'jpg', 'jpeg', 'png'));
// uploads the single file to the images directory with file extensions of gif, jpg, jpeg, or png
// make a form as an array upload with formname 'images'
$files = upload_files('images',NULL,'png');
// uploads multiple files to the current directory as long as the file extension is png
?>
Updated on Jun 29th at 3 am.
site_is_up
Information
(PHP Version >= 3)Functions used in this snippet: fsockopen, str_replace, fclose.
Description
bool site_is_up( str site, int port0, int timeout )
checks site on port port to see if the site is accepting connections (whether the site is up or not). If site is down it will take [i]timeout[i] seconds to timeout. Returns true on success and false on failure.
Snippet
<?php
function site_is_up($site,$port=80,$timeout=1){
$port = $port === NULL ? 80 : $port;
$fp = @fsockopen(str_replace('http://','',$site), $port, $errno, $errstr, $timeout);
if($fp === false){
return false;
}
fclose($fp);
return true;
}
?>
Example
site_is_up Can be used in the following way:
<?php
if(site_is_up('www.bigtoach.com')){
echo 'Site is up!!';
}else{
echo 'Site is down.';
}
// self explanitory I hope
if(site_is_up('bigtoach.com',NULL,5)){ echo 'UP!'; }
// check bigtoach.com with a 5 second timeout (still on port 80)
if(site_is_up('bigtoach.com',2082)){ echo 'UP!'; }
// check bigtoach.com on port 2082
?>
Updated on Jun 27th at 6 pm.
resize
Information
(PHP Version >= 4.0.6)Functions used in this snippet: file_exists, substr, strrpos, stristr, imagecreatefromgif, imagecreatefromjpeg, imagecreatefrompng, imageSX, imageSY, ceil, imageCreatetruecolor, imagecreatetrueColor, imagecopyresized, isset, strtolower, imagecopy, imagedestroy.
Description
int resize( str image, int x [, int y [, str wm [, str wml]]])
Uses image to resize based on the size specification of x and y. If y is set to NULL the image will be resized to have its largest dimension be x pixels high/wide.
If wm is specified, it will be used as a watermark image to be placed over the resized image in the region wml. Where the first character places the watermark in the t - Top or b - Bottom and the second character places the watermark on the l - Left or r - Right side of the image.
Snippet
<?php
function resize($image,$x,$y=NULL,$wm=NULL,$wml='br'){
if(!file_exists($image)){
return false;
}
$images = array();
if($wm !== '' && $wm !== NULL && file_exists($wm)){
$images['wmimg'] = $wm;
}
$images['img'] = $image;
foreach($images as $key=>$value){
$type = substr($value,strrpos($value,'.'));
if(stristr($type,'i')){
$$key = imagecreatefromgif($value);
}
if(stristr($type,'j')){
$$key = imagecreatefromjpeg($value);
}
if(stristr($type,'n')){
$$key = imagecreatefrompng($value);
}
}
$size = array();
if($y === '' || $y === NULL){
$size['x'] = imageSX($img);
$size['y'] = imageSY($img);
if($size['x'] >= $size['y']){
$size['dest_x'] = $x;
$size['dest_y'] = ceil($size['y'] * ($x / $size['x']));
}else{
$size['dest_y'] = $x;
$size['dest_x'] = ceil($size['x'] * ($x / $size['y']));
}
$dest = imageCreatetruecolor($size['dest_x'],$size['dest_y']);
}else{
$dest = imagecreatetrueColor($x,$y);
$size['x'] = imageSX($img);
$size['y'] = imageSY($img);
$size['dest_x'] = $x;
$size['dest_y'] = $y;
}
imagecopyresized($dest, $img, 0, 0, 0, 0, $size['dest_x'], $size['dest_y'], $size['x'], $size['y']);
if(isset($wmimg)){
$size['wmx'] = imageSX($wmimg);
$size['wmy'] = imageSY($wmimg);
$size['wmh'] = strtolower($wml{0}) === 'b' ? ($size['dest_y'] - $size['wmy'] - 2) : 2;
$size['wmw'] = strtolower($wml{1}) === 'r' ? ($size['dest_x'] - $size['wmx'] - 2) : 2;
imagecopy($dest, $wmimg, $size['wmw'], $size['wmh'], 0, 0, $size['wmx'], $size['wmy']);
imagedestroy($wmimg);
}
imagedestroy($img);
return $dest;
}
?>
Example
resize Can be used in the following way:
<?php
header('Content-type: image/jpeg'); // set your header for jpeg image
imagejpeg(resize('imagefile.png',100));
// outputs imagefile.png as a jpeg constrained to 100 px with its ratio kept the same
header('Content-type: image/png'); // set your header for png image
imagepng(resize('filename.png',100,100));
// outputs filename.png as a png and as a 100X100 image
header('Content-type: image/png'); // set your header for png image
imagepng(resize('imagefile.jpg',100,NULL,'logo.png','bl'));
// outputs imagefile.jpg as a png constrained to 100 px with its ratio kept the same
// it also adds logo.png on top of the image on the bottom left of the image
?>
Updated on Jun 27th at 5 pm.
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