Demario posted

How to use mySQL WHERE clause in PHP?

jaman
answered Apr 28 '23 00:00

To use the MySQL WHERE clause in PHP, you can include it as part of your SQL query string. Here's an example:


$value = 'some_value';
$query = "SELECT * FROM my_table WHERE column1 = '$value'";

$result = mysqli_query($connection, $query);

In this example, the $value variable contains the value you want to filter on, and the $ query variable is the SQL query string that includes the WHERE clause. The = operator is used to compare the value in column1 to the value in $value.

You can use other comparison operators in the WHERE clause as well, such as <>, >, <, >=, <=, LIKE, BETWEEN, etc. You can also use logical operators (AND, OR, NOT ) to combine multiple conditions in the WHERE clause.

Remember to properly escape and sanitize any user input used in the query to prevent SQL injection attacks. You can use the mysqli_real_escape_string() function to escape any user input used in the query.

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Demario posted

How to use mySQL WHERE clause in PHP?

jaman answered Apr 28 '23 00:00

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jaman
answered Apr 28 '23 00:00