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What is the correct way to get the length of an array in PHP?

  • count($array);
  • array_length($array);
  • sizeof($array);
  • length($array);
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Which function is used to start output buffering in PHP?

  • ob_start()
  • start_buffer()
  • buffer_start()
  • output_buffer_start()
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What is the correct way to close a MySQL connection in PHP?

  • mysql_end()
  • mysql_close()
  • close_mysql()
  • mysql_disconnect()
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Which function is used to start output buffering in PHP?

  • ob_start()
  • start_buffer()
  • buffer_start()
  • output_buffer_start()
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How do you check if a file is readable in PHP?

  • is_readable($file);
  • readable($file);
  • file_readable($file);
  • check_readable($file);
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How do you insert a comment in PHP code?

  • /* This is a comment */
  • // This is a comment
  • <!-- This is a comment -->
  • # This is a comment
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What is the default file extension for PHP files?

  • .ph
  • .php
  • .phtml
  • .php3
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How do you fetch a result row as an object in PHP?

  • mysql_fetch_array()
  • mysql_fetch_row()
  • mysql_fetch_object()
  • mysql_fetch_assoc()
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Which function is used to remove the last element from an array in PHP?

  • pop()
  • array_pop()
  • remove_last()
  • array_remove_last()
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Which method is used to retrieve data from a form using the GET method?

  • $_POST[]
  • $_REQUEST[]
  • $_GET[]
  • $_FORM[]
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How do you get the file extension of a file in PHP?

  • file_ext()
  • pathinfo()
  • get_extension()
  • file_extension()
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What is the correct way to check if a variable is an array in PHP?

  • is_array($variable);
  • check_array($variable);
  • array_check($variable);
  • is_arr($variable);
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Which of the following is not a valid variable name in PHP?

  • $var_name
  • $varName
  • $var-name
  • $varName2
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Which function is used to format a number with grouped thousands?

  • number_format()
  • num_format()
  • format_number()
  • number_group_format()
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How do you generate a random number in PHP?

  • rand()
  • random()
  • generate_random()
  • randomize()
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Which SQL statement is used to extract data from a database?

  • GET
  • OPEN
  • SELECT
  • EXTRACT
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Which function is used to open a file in PHP?

  • open()
  • fopen()
  • file_open()
  • file()
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Which function is used to remove the last element from an array in PHP?

  • pop()
  • array_pop()
  • remove_last()
  • array_remove_last()
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How do you access a global variable inside a function in PHP?

  • global $variable;
  • $GLOBALS['variable'];
  • $global['variable'];
  • global_variable($variable);
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Which PHP function is used to get the length of a string?

  • strlen()
  • strlength()
  • string_length()
  • str_len()
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How do you create a cookie in PHP?

  • setcookie("name", "value", time()+3600);
  • cookie_create("name", "value", time()+3600);
  • create_cookie("name", "value", time()+3600);
  • add_cookie("name", "value", time()+3600);
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What is the correct way to check if a variable is an array in PHP?

  • is_array($variable);
  • check_array($variable);
  • array_check($variable);
  • is_arr($variable);
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How do you create a loop in PHP?

  • for loop
  • while loop
  • do loop
  • foreach loop
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How do you insert a comment in PHP code?

  • /* This is a comment */
  • // This is a comment
  • <!-- This is a comment -->
  • # This is a comment
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What does OOP stand for in PHP?

  • Object Oriented Programming
  • Original Object Programming
  • Outer Object Programming
  • Optimal Object Programming
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Which MySQL function is used to execute a query in PHP?

  • mysql_query()
  • mysql_execute()
  • mysql_run()
  • mysql_command()
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What does OOP stand for in PHP?

  • Object Oriented Programming
  • Original Object Programming
  • Outer Object Programming
  • Optimal Object Programming
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How do you remove whitespaces from the beginning and end of a string?

  • trim()
  • strip()
  • ltrim()
  • rtrim()
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How do you get the last inserted ID in MySQL using PHP?

  • mysql_insert_id()
  • mysql_last_id()
  • mysql_get_id()
  • mysql_last_insert_id()
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How do you decode JSON data in PHP?

  • json_decode()
  • json_unserialize()
  • decode_json()
  • unserialize_json()
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