PHP Simple Generation of Random Numbers, Strings
1. Generate random string /** * Generate random string * * @param int $length Output length * @param string $chars Optional , default is 0123456789 * @return string string */ function random( $length, $chars ...
PHP string encryption and decryption functions
1, simple string encryption, decryption function /** * String encryption, decryption function * * * @param string $txt String * @param string $operation ENCODE for encryption, DECODE for decryption, optional parameter, default is ENCODE, * @param st...
PHP objects, arrays, strings, escaping, etc.
1、Convert array to object /** * Convert array to object * @param array $data array * @return Return object (object) */ function array2object($array) { if (is_array($array)) { $obj = new StdClass(); ...
PHP DateTime common methods
Instantiation of an object preceded by \ means that the native class is used in the namespace, if the namespace is not used, you can remove the preceding \ 1. Output the current time $datetime = new \DateTime; print_r($datetime->format('Y-m-d H:i...
PHP Date, Time, Byte Conversion
1, convert bytes to other units (Gb, Mb, etc.) 2, time conversion (convert seconds to time) /** * Function dataformat * Time conversion (convert seconds to time) * @param $n INT time */ function dataformat($n) { $hours = f ...
PHP CURL operations
The CURL class implements a wrapper around the PHP Curl extension, using instances of this class to enable remote access. To use this module you need to enable the Curl extension. 1, initiate get request function get_url($url) { $ch = curl_init(); $header[] = ''; curl_setop...
php session vs cookie
1, set session /** * set session * @param String $name session name * @param Mixed $data session data * @param Int $expire timeout(sec) */ function set _session($name, $data, $expir...
PHP common methods to manipulate directories or files
1, convert \ to / /** * Convert \ to / * * * @param string $path path * @return string path */ function dir_path($path) { $path = str_replace('\\', '/', $path); if(substr($path, -1) ! = '/'...
PHP common string processing methods
1, realize the search engine to search results hit the keyword marked red <?php /** * Split the string into an array * @param $search search keyword * @return array */ function splitString(string $search):array { // positive ...
Codec conversion of string character sets
String codec conversion including: utf8 to gbk, Simplified Chinese to Traditional Chinese, unicode to utf8, Ascii to Pinyin, Unicode decoding, etc.