[Solved] Mysql real escape [closed]

The problem is that you aren’t using it… Make this change. <?php $address = mysql_real_escape_string($_POST[‘bitcoinaddress’]); $btc = mysql_real_escape_string($_POST[‘btcamount’]); $phone = mysql_real_escape_string($_POST[‘phonenumber’]); $con = mysql_connect(“localhost”,”db user”,”password”); if (!$con) { die(‘Could not connect: ‘ . mysql_error()); } mysql_select_db(“db_name”, $con); $sql=”INSERT INTO `db_name`.`form` (`bitcoinaddress`, `btcamount`, `phonenumber`) VALUES (‘”.$address.”‘,'”.$btc.”‘,'”.$phone.”‘)”; if (!mysql_query($sql,$con)) { die(‘Error: ‘ . mysql_error()); } echo ($btc); … Read more

[Solved] Std vector of std matrices (vector of vectors) in c++

A three dimensional vector follows the same format that a 2 dimension vector has. If A, B, C … are defined as std::vector<std::vector<double> > A (6,std::vector<double>(6)); Then their type is std::vector<std::vector<double> >. To create a vector that will hold 8 of those then you need to use std::vector<std::vector<std::vector<double>>> someName(8); If you want to have the … Read more

[Solved] How do I remove duplicate lines and ignore some of the text? [closed]

This should work: public static void main(String[] args) { String[] input = {“1/ce/a6/5a/1cea65ab9260df8d55fb29ce0df570d3.jpg ::: 2021-09-17T17:07:52Z”, “1/ce/a6/5a/1cea65ab9260df8d55fb29ce0df570d4.jpg ::: 2021-09-17T17:07:52Z”, “1/ce/a6/5a/1cea65ab9260df8d55fb29ce0df570d3.jpg ::: 2021-09-17T17:07:00Z”}; HashMap<String, String> outMap = new HashMap<>(); List<String> keys = new LinkedList<>(); for(String line:input) { String key = line.substring(0, line.indexOf(“:::”)); String oldVal = outMap.putIfAbsent(key, line); if(oldVal==null) { keys.add(key); } } List<String> collect = keys.stream().map(key -> … Read more

[Solved] Perfect forwaring of auto&& in generic lambda

In C++20 and later auto lambda20 = []<class F, class…Ts>(F &&fn, Ts &&…args) { return std::forward<F>(fn)(std::forward<Ts>(args)…); }; In C++pre20 : C++11,14,17 auto lambda14 = [](auto &&fn, auto &&…args) { return std::forward< std::conditional_t< std::is_rvalue_reference_v<decltype(fn)>, typename std::remove_reference_t<decltype(fn)>, decltype(fn)> >(fn)( std::forward< std::conditional_t<std::is_rvalue_reference<decltype(args)>::value, typename std::remove_reference<decltype(args)>::type, decltype(args) >>(args)…); }; Example #include <iostream> using namespace std; int main() { auto lambda20 … Read more

[Solved] Get first day of current month in php [closed]

Here you go: $thisMonthsFirstDay = (new DateTime(‘first day of this month’))->format(‘l’); Also always take a look into the documentation, you can learn a lot from there. 0 solved Get first day of current month in php [closed]

[Solved] OCR – How to recognize numbers inside square boxes using python?

the code below for me is doing decent job but it’s hyper parameter sensitive : import cv2 import imutils import numpy as np import matplotlib.pyplot as plt from matplotlib import pyplot as plt def square_number_box_denoiser(image_path=”/content/9.png”,is_resize = False, resize_width = 768): ”’ ref : https://pretagteam.com/question/removing-horizontal-lines-in-image-opencv-python-matplotlib Args : image_path (str) : path of the image containing numbers/digits … Read more

[Solved] “unknown type name ‘size_t'” error from included .cpp file, but removed when included file name changed to .h file. Why? [closed]

The problem was not in the code. In my Makefile, I mistakenly put $^ instead of $< as below. %: %.c include/*.h $(CROSS_COMPILE)gcc -g -fmax-errors=5 -DQEMU -I$(AXPUDIR) -I$(INCDIR) $^ -o $@ So the make tried to compile the header file (which I put as prerequisite, to make it recompiled when I change the header file) … Read more

[Solved] How to filter squares in an array [closed]

What about this, you iterate over the array and check that the square of the square root is the same as the original number. If so, you add it to a list that you convert to an array once you are done. int[] numbers = new int[] { 1,2,3,4,5,6,7,8,9,10 }; List<Integer> resultList = new ArrayList<>(); … Read more