Posts (page 157)
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5 min readIn Laravel, joining two models is accomplished using Eloquent relationships. Eloquent is Laravel's built-in ORM (Object-Relational Mapping) system which enables you to interact with your database records using models instead of writing raw SQL queries.To join two models in Laravel, you need to define a relationship between them. There are several types of relationships available in Laravel, including one-to-one, one-to-many, many-to-many, and polymorphic relationships.
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4 min readTo convert an integer to a currency format in PHP, you can use the number_format function. This function provides a way to format a number with grouped thousands and decimal places.To convert an integer, follow these steps:Assign the integer value to a variable. $amount = 1234567; Use the number_format function to format the integer as a currency. $formattedAmount = number_format($amount, 2, '.
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8 min readIf you want to slow down HTTP requests sent from JavaScript, there are a few approaches you can take.Delay execution: One way to slow down requests is by delaying their execution using the setTimeout function. By wrapping the request code inside a setTimeout callback and specifying a delay, you can control the timing of the request. Throttle requests: Throttling involves limiting the frequency of requests to a certain number per second or minute.
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7 min readTo run a PHP script 24/7, you need to follow these steps:Set up a server: You must have a server to host your PHP script. This can be a local server on your computer or a remote server accessible through the internet. Install PHP: Make sure that PHP is installed on your server. If you're using a local server, you may need to install PHP separately. On a remote server, PHP should typically be pre-installed.
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7 min readTo install the Redis extension in PHP, you need to follow these steps:Start by checking if the Redis extension is already installed on your system. Open a terminal or command prompt and run the following command: php -m | grep redis If the Redis extension is already installed, you will see "redis" in the output. You can skip the installation process in this case. If Redis is not installed, you need to install it using the PECL repository.
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7 min readThe preg_match function is a powerful tool in PHP that allows you to perform regular expression pattern matching. It searches a given string for a specific pattern and returns true if a match is found, or false otherwise.To use preg_match, you need to provide two main arguments: the pattern and the subject string. The pattern is a regular expression that describes the pattern you are searching for, and the subject string is the text you want to search within.
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7 min readIn JavaScript, you can clear multiple user inputs by accessing each input element individually and setting their values to an empty string.To achieve this, you can make use of the getElementById() method or other query selectors to obtain references to the input elements. Then, you can use the value property to set their values to an empty string.
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5 min readTo save a JSON array in MySQL using PHP, you can follow these steps:Establish a connection to the MySQL database using PHP's mysqli or PDO extension.Convert the JSON array into a PHP array using json_decode(). This will allow easy manipulation and database insertion.Prepare an SQL insert statement with placeholders for the JSON array data.Bind the JSON array data to the corresponding placeholders in the prepared statement.
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7 min readTo remove specific elements from an array in JavaScript, you can use various methods. Here are a few common approaches:Using the splice() method: This method changes the content of an array by removing or replacing existing elements. You can provide the index at which to start removing elements and the number of elements to remove. For example, to remove a specific element at index 2, you can use: array.splice(2, 1). This removes one element at index 2 from the array.
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6 min readTo import JavaScript from an external file, you can follow these steps:Create a separate JavaScript file with a .js extension. For example, you can create a file named script.js. In the main HTML file where you want to use the JavaScript code, include a script tag inside the head or body section. This script tag is used to import the external JavaScript file. The source attribute of the script tag should point to the location and name of the JavaScript file.
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5 min readTo fill an array with a for loop in JavaScript, you can follow these steps:Create an empty array that you want to fill.Determine the length of the array you want to create and assign it to a variable.Use a for loop to iterate over each index of the array.Inside the loop, use the index to assign values to each element of the array.The values can be assigned using any logic or algorithm you desire.
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5 min readTo add a line under a header in HTML, you can use the <hr> tag. <hr> stands for horizontal rule and represents a thematic break or separation between content. Here's how you can add a line under a header in HTML: <h1>This is a header</h1> <hr> In this example, the <h1> element represents the header text, and the <hr> tag adds a horizontal line directly below it. The line will stretch across the full width of its container.