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What are the potential pitfalls of not properly handling character encoding in PHP when working with HTML and MySQL?

Improper handling of character encoding in PHP when working with HTML and MySQL can lead to issues such as garbled text, incorrect display of special...

How can concatenating variables with strings be used to pass parameters in PHP exec() calls?

When passing parameters in PHP exec() calls, you can concatenate variables with strings to ensure that the parameters are properly formatted. This is...

How can the str_replace() function be used to remove line breaks in PHP text?

To remove line breaks in PHP text, you can use the str_replace() function to replace the line break characters with an empty string. Line breaks can b...

How effective is the use of mysqli_real_escape_string in PHP to protect against SQL injection, when used in conjunction with limiting character lengths?

Using mysqli_real_escape_string in PHP can help protect against SQL injection by escaping special characters in user input. However, it is not foolpro...

How can placeholders be used in PDO statements to search for partial strings?

When using placeholders in PDO statements to search for partial strings, you can use the '%' wildcard in conjunction with the LIKE operator. This allo...