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Grep characters before and after match?
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3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
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ValueError: invalid literal for int() with base 10: ''
...answered Apr 23 '19 at 3:21
Brad123Brad123
49233 silver badges66 bronze badges
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Sorting a list using Lambda/Linq to objects
... answered Jan 2 '13 at 16:32
gls123gls123
4,89922 gold badges2424 silver badges2626 bronze badges
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Easiest way to compare arrays in C#
...or tuples via using StructuralComparisons type:
object[] a1 = { "string", 123, true };
object[] a2 = { "string", 123, true };
Console.WriteLine (a1 == a2); // False (because arrays is reference types)
Console.WriteLine (a1.Equals (a2)); // False (because arrays is reference types)
IStruct...
How to terminate the script in JavaScript?
How can I exit the JavaScript script much like PHP's exit or die ? I know it's not the best programming practice but I need to.
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Using an integer as a key in an associative array in JavaScript
...ered Mar 24 '14 at 12:51
Jesuslg123Jesuslg123
55644 silver badges1515 bronze badges
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Composer killed while updating
... I tried to install a new package to my Laravel 4 project.
But when I run php composer.phar update I get this:
14 Answers...
Detect encoding and make everything UTF-8
...ixing UTF-8 and Latin1 in the same string.
Usage:
require_once('Encoding.php');
use \ForceUTF8\Encoding; // It's namespaced now.
$utf8_string = Encoding::toUTF8($utf8_or_latin1_or_mixed_string);
$latin1_string = Encoding::toLatin1($utf8_or_latin1_or_mixed_string);
Download:
https://github.co...
What is the most accurate way to retrieve a user's correct IP address in PHP?
... fully-validated, and fully-packaged, version of @AlixAxel's answer:
<?php
/* Get the 'best known' client IP. */
if (!function_exists('getClientIP'))
{
function getClientIP()
{
if (isset($_SERVER["HTTP_CF_CONNECTING_IP"]))
{
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Better way to check variable for null or empty string?
Since PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
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