preg_match() username sanitization
0 likes • Nov 18, 2022
PHP
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<?phpfunction getRandomId($min = NULL, $max = NULL) {if (is_numeric($min) && is_numeric($max)) {return mt_rand($min, $max);}else {return mt_rand();}}?>
<?php$listOfFiles = glob("*.{jpg,png,gif,tiff,jpeg}", GLOB_BRACE);echo 'images = []; ';for($x = 0; $x <= count($listOfFiles)-1; $x++) {echo "images[" . $x . "] =" . '"' . $listOfFiles[$x] . '"' . "; ";}?>
<?phpfunction uniqidReal($length = 8) {// uniqid gives 8 chars, can be changedif (function_exists("random_bytes")) {$bytes = random_bytes(ceil($length / 2));} elseif (function_exists("openssl_random_pseudo_bytes")) {$bytes = openssl_random_pseudo_bytes(ceil($length / 2));} else {throw new Exception("no cryptographically secure random function available");}return substr(bin2hex($bytes), 0, $length);}/*//for testingfor($i = 0; $i < 10; $i++) {echo "<br>";echo uniqidReal();}*/?>
<?phpheader('Content-Type:text/html');$jsonData = json_decode(file_get_contents("names.json"));$namesArray = array();foreach($jsonData as $data) {$namesArray[] = $data;}for($i = 0; $i < 64000; $i++) {echo 'D.add_edge("'. $namesArray[array_rand($namesArray)] . '", "' . $namesArray[array_rand($namesArray)]. '")';echo "<br>";}?>
<?php$im = imagecreatefrompng('example.png');$size = min(imagesx($im), imagesy($im));$im2 = imagecrop($im, ['x' => 0, 'y' => 0, 'width' => $size, 'height' => $size]);if ($im2 !== FALSE) {imagepng($im2, 'example-cropped.png');imagedestroy($im2);}imagedestroy($im);?>
<?php$json ='{"id":1,"name":"foo","interest":["wordpress","php"]}';$obj=json_decode($json);echo $obj->interest[1]; //prints php?>