PHP Exercises : Get the last occurred error

Last update on December 20 2024 10:23:45 (UTC/GMT +8 hours)

Write a PHP script to get the last occurred error.

Sample Solution:

PHP Code:

<?php
// Attempt to echo the variable $x (which is not defined)
echo $x;

// Print the details of the last error that occurred using error_get_last()
print_r(error_get_last());
?>

Explanation:

• Undefined Variable:
• echo $x tries to output the value of $x, but $x is not defined, which causes a PHP notice or warning error.
• Retrieve Last Error:
• error_get_last() returns an associative array with details of the last error that occurred, including the error type, message, file, and line number.
• Display Error Details:
• print_r(error_get_last()) outputs the array containing information about the last error (from the undefined variable), allowing for debugging or logging.

Output:

Array                                                       
(                                                           
    [type] => 8                                             
    [message] => Undefined variable: x                      
    [file] => /home/students/0d0149c0-f42e-11e6-a8c0-b738b9f
f32f9.php                                                   
    [line] => 2                                             
)

Flowchart:

Note: error_get_last() function returns an associative array describing the last error with keys "type", "message", "file" and "line". If the error has been caused by a PHP internal function then the "message" begins with its name. Returns NULL if there hasn't been an error yet.

PHP Code Editor:

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