run this command at the command prompt.

, have more than 200 built-in methods

To : Open a terminal by pressing Ctrl+Alt+T and run the following command to update the package lists: This command will reconfigure the package and attempt to fix any configuration issues.

In Python,.

At C++, . It's generally recommended to use the exit() function instead, which performs some cleanup before terminating the program.

To use a string variable in the WHERE clause of a MySQL query in PHP, you can include the variable in the SQL query string using concatenation and quotes. Here's an example: In this example, the $variable PHP variable contains the string value you want to filter on, and the $query variable is the SQL query string that includes the WHERE clause. function to escape any user input used in the query. Also, be sure to properly quote and format the variable in the SQL query string. If the variable is a string, it should be enclosed in quotes in the query. If the variable is an integer or other numeric type, it should not be enclosed in quotes.

You can create multiple sessions in PHP by using different session names for each session. The default session name is PHPSESSID, but you can change it using the session_name() function. Here's an example of how to create and manage multiple sessions: In this example, the first session is started with the default session name using session_start(), and a variable is set in the session using $_SESSION['session1_var'] = 'value1'. Then, the session name is changed to for each session you want to use.

To sort records in Laravel, you can use the orderBy() method of the query builder. Here's an example: In this example, the results are first sorted by the name column in ascending order, and then by the email column in ascending order. Note that the orderBy() method modifies the query builder instance and does not execute the query. To execute the query and retrieve the results, you need to call one of the query execution methods like().

To sort an array of associative arrays by value of a given key in PHP, you can use the () function.

You can use an array in a MySQLi query in PHP by using a prepared statement with parameter binding. Here's an example: In this example, we create an array of values to use in the query ($values). We then use a prepared statement to insert these values into a MySQL database. The bind_param method binds the values from the array to the placeholders in the SQL statement. Note that the first argument to bind_param specifies the types of the parameters. In this case, we're using three strings ("sss") because our values are strings. If we were using integers or other data types, we would use a different type specifier (such as "iii" for three integers). This approach is useful for preventing SQL injection attacks, as the values are properly escaped and sanitized by the prepared statement. It also allows for better performance when executing multiple similar queries with different values, as the prepared statement can be reused with different parameter bindings.

The error message "Cast from 'Data' to unrelated type 'String' always fails" is a runtime error that occurs when you try to convert a objects in your Swift code.

In PHP, you can convert an XML string to an array using the . This method is useful when you need to parse XML data and use it in your PHP code.

clearInterval is the function used to cancle the previously called setInterval() iteration clearInterval has one parameter. which is required. The interval id returned from setInterval().

as you see above it set background color to red of the div by background-color property.

[h2]read()[/h2] is a python function gets used to reading the content from the file. readline(10) is used to read 10 bytes from the first line.

%s used to print string, %d used to print integer value in Python

array_push is the function to push the element at end of the array by that we can make array as per need

all array elements are joined with " "(space) by implode() function in above example

1. by lazy loading, web pages become faster and it gives good ranking at search enginee. 2. image load after loading all web page resources which divides the server load. 3. lazy loading gives a good score at google page insights.

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