jamesBan’s gists

jamesBan / exists

Last active August 29, 2015 14:04

检查mongodb collection 是否存在

	<?php
	$mongo = new MongoClient();
	$db = $mongo->dbName;
	$collection = $db->collectionName;

	$cursor = $collection->find($criteria, array('_id' => 1))->limit(1);

	if($coursor->count() == 0){
	exit('not exist');
	}

jamesBan / install ImageMagick+tesseract-ocr.sh

Last active February 5, 2018 10:18

install ImageMagick+tesseract-ocr

	wget http://leptonica.googlecode.com/files/leptonica-1.69.tar.bz2
	tat xvf leptonica-1.69.tar.bz2
	cd leptonica-1.69
	./configure
	make && make install
	ldconfig


	wget https://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.02.tar.gz
	tar zxvf tesseract-ocr-3.02.02.tar.gz

jamesBan / mongodb hash mongoId.php

Last active September 16, 2015 07:59

get hash mongoId

	<?php
	$client = new MongoClient('mongodb://127.0.0.1');

	$collection = $client->test->test;


	//insert data
	$data[] = array('name' => 'zhangsan', 'age' => rand(1, 100));
	$data[] = array('name' => 'zhangsan1', 'age' => rand(1, 100));
	$data[] = array('name' => 'zhangsan2', 'age' => rand(1, 100));

jamesBan / OnlineUsers.php

Last active August 29, 2015 14:24 — forked from diogok/OnlineUsers.php

	<?php
	//http://flask.pocoo.org/snippets/71/ that is good idea
	include 'predis/predis.phar';

	class OnlineUsers {

	/* time to consider user online */
	private $minutes = 5 ;

	function online() {

jamesBan / random

Created July 7, 2015 13:19

Elasticsearach

	{
	"query" : { "query_string" : {"query" : ":"} },
	"sort" : {
	"_script" : {
	"script" : "(doc['_id'].value + salt).hashCode()",
	"type" : "number",
	"params" : {
	"salt" : 10000
	},
	"order" : "asc"

jamesBan / gist:b74213e929f53c7ed1a1

Created July 7, 2015 13:21

Elastic-order-date

jamesBan / php tuple.php

Created September 16, 2015 07:56

php tuple splfixArray

	<?php
	class Tuple extends SplFixedArray
	{
	protected $prototype;

	public function __construct(array $prototype, array $data = [])
	{
	echo __METHOD__ . "\r\n";

	parent::__construct(count($prototype));

jamesBan / dump.php

Last active September 16, 2015 08:09 — forked from eddmann/dump.php

An alternative to 'var_dump'

	function dump()
	{
	$args = func_get_args();

	echo "\n<pre style=\"border:1px solid #ccc;padding:10px;margin:10px;font:14px courier;background:whitesmoke;display:block;border-radius:4px;\">\n";

	$trace = debug_backtrace(false);
	$offset = (@$trace[2]['function'] === 'dump_d') ? 2 : 0;

	echo "<span style=\"color:red\">" . @$trace[1+$offset]['class'] . "</span>:" .

jamesBan / 全角转半角.php

Created October 16, 2015 08:25

全角转半角

jamesBan / array_reduce.php

Last active March 15, 2016 05:36

嵌套匹配