PHP: Get the PHP extension name of a class by the class name
$class_name = 'DOMDocument';
$class = new ReflectionClass($class_name);
$extension = $class->getExtension();
echo $extension;
PHP: Display all functions and classes within a PHP extension by extension name
$extension_name = 'dom';
$extension = new ReflectionExtension($extension_name);
print_r($extension->getFunctions());
print_r($extension->getClassNames());
PHP: Get the PHP extension name of a function by the function name
$function_name = 'imagecreate';
$class = new ReflectionFunction($function_name);
$extension = $class->getExtension();
echo $extension;
Cloudflare domains (net stock price) renew/transfer/register prices list
Cloudflare Registrar securely registers and manages your domain names with transparent, no-markup pricing(net stock price) that eliminates surprise renewal fees and hidden add-on charges. You pay what we pay — you won’t find better value.
This list is in US Dollars.
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JavaScript: Automatically make all the external links with rel=”nofollow noopener noreferrer”
The rel attribute specifies the relationship between the current document and the linked document. Search engines can use this attribute to get more information about a link.
rel Attribute Values
nofollow | Links to an unendorsed document, like a paid link. (“nofollow” is used by Google, to specify that the Google search spider should not follow that link) |
noreferrer | Requires that the browser should not send an HTTP referer header if the user follows the hyperlink |
noopener | Requires that any browsing context created by following the hyperlink must not have an opener browsing context |
Add the following code into your HTML page between the <head> and </head> tags or before the closing </body> tag
<script>
document.addEventListener('DOMContentLoaded', function () {
var links = document.getElementsByTagName("a");
var i;
for (i = 0; i < links.length; i++) {
if (location.hostname !== links[i].hostname) {
links[i].rel = "nofollow noopener noreferrer";
links[i].target = "_blank";
}
}
});
</script>
PHP: Convert IPv4 to IPv6
The following PHP function will help you easily convert IPv4(IP address version 4) to IPv6(IP address version 6).
The function will return false if the provided IP address is invalid else it will return the equivalent IPv6
function convert_ipv4_to_ipv6($ip)
{
if (!filter_var($ip, FILTER_VALIDATE_IP)) {
return false;
}
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
return $ip;
}
$bytes = array_map('dechex', explode('.', $ip));
return vsprintf('0:0:0:0:0:ffff:%02s%02s:%02s%02s', $bytes);
}
Darken or lighten colors dynamically using PHP
Below is a snippet of the code and usage guide.
PHP Function
function colourBrightness($hex, $percent)
{
// Work out if hash given
$hash = '';
if (stristr($hex, '#')) {
$hex = str_replace('#', '', $hex);
$hash = '#';
}
/// HEX TO RGB
$rgb = [hexdec(substr($hex, 0, 2)), hexdec(substr($hex, 2, 2)), hexdec(substr($hex, 4, 2))];
//// CALCULATE
for ($i = 0; $i < 3; $i++) {
// See if brighter or darker
if ($percent > 0) {
// Lighter
$rgb[$i] = round($rgb[$i] * $percent) + round(255 * (1 - $percent));
} else {
// Darker
$positivePercent = $percent - ($percent * 2);
$rgb[$i] = round($rgb[$i] * (1 - $positivePercent)); // round($rgb[$i] * (1-$positivePercent));
}
// In case rounding up causes us to go to 256
if ($rgb[$i] > 255) {
$rgb[$i] = 255;
}
}
//// RBG to Hex
$hex = '';
for ($i = 0; $i < 3; $i++) {
// Convert the decimal digit to hex
$hexDigit = dechex($rgb[$i]);
// Add a leading zero if necessary
if (strlen($hexDigit) == 1) {
$hexDigit = "0" . $hexDigit;
}
// Append to the hex string
$hex .= $hexDigit;
}
return $hash . $hex;
}
Function Usage
You do not have to give the color with the ‘#’ in front but if you do it will still return the new hex color with the ‘#’ auto-magically.
Lighten a color
$colour = '#ae64fe';
$brightness = 0.5; // 50% brighter
$newColour = colourBrightness($colour, $brightness);
Darken a color
$colour = '#ae64fe';
$brightness = -0.5; // 50% darker
$newColour = colourBrightness($colour, $brightness);
How to reset AUTO_INCREMENT in MySQL and start counting from 1 again?
Let say you have a table called “my_table” with an auto-increment column called “id” and you want the id column to start counting from 1,2,3,… then use the following SQL queries.
SET @num := 0;
UPDATE my_table SET id = @num := (@num+1);
ALTER TABLE my_table AUTO_INCREMENT =1;
Magento – Get Current Store Details (ID, Code, Name and Status)
// Gets the current store’s details
$store = Mage::app()->getStore();
// Gets the current store’s id
$storeId = Mage::app()->getStore()->getStoreId();
// Gets the current store’s code
$storeCode = Mage::app()->getStore()->getCode();
// Gets the current website’s id
$websiteId = Mage::app()->getStore()->getWebsiteId();
// Gets the current store’s group id
$storeGroupId = Mage::app()->getStore()->getGroupId();
// Gets the current store’s name
$storeName = Mage::app()->getStore()->getName();
// Gets the current store’s sort order
$storeSortOrder = Mage::app()->getStore()->getSortOrder();
// Gets the current store’s status
$storeIsActive = Mage::app()->getStore()->getIsActive();
// Gets the current store’s locale
$storeLocaleCode = Mage::app()->getStore()->getLocaleCode();
// Gets the current store’s home url
$storeHomeUrl = Mage::app()->getStore()->getHomeUrl();
What are the differences between ‘git pull’ and ‘git fetch’?
What are the differences between git pull and git fetch?
Answer:
In the simplest terms, git pull does a git fetch followed by a git merge.
You can do a git fetch at any time to update your remote-tracking branches under refs/remotes/<remote>/. This operation never changes any of your own local branches under refs/heads, and is safe to do without changing your working copy. I have even heard of people running git fetch periodically in a cron job in the background (although I wouldn’t recommend doing this).
A git pull is what you would do to bring a local branch up-to-date with its remote version, while also updating your other remote-tracking branches.
Git documentation: git pull
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