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PHP | intl_is_failure() Function
  • Last Updated : 18 May, 2019

The intl_is_failure() function is an inbuilt function in PHP which is used to check whether the given error code indicates failure.

Syntax:

bool intl_is_failure( $error_code )

Parameters: This function accepts single parameter $error_code which is a value that returned by the functions intl_get_error_code(), collator_get_error_code().

Return Value: If the code indicates some failure then it returns True and in case of success or a warning it returns False.

Below programs illustrate the intl_is_failure() function in PHP:



Program 1:




<?php
  
// Function definition
function check( $err_code ) {
    var_export( intl_is_failure( $err_code ) );
    echo "\n";
}
  
// Function call using error_code as parameter
check( U_USING_FALLBACK_WARNING );
check( U_ILLEGAL_ARGUMENT_ERROR );
  
?>


Output:

false
true

Program 2:




<?php
  
// Function definition
function check( $err_code ) {
    var_export( intl_is_failure( $err_code ) );
    echo "\n";
}
  
// Declare an array which contains error_code
$arr = array
    U_ZERO_ERROR, 
    U_ILLEGAL_ARGUMENT_ERROR,
    U_USING_FALLBACK_WARNING,
);
  
// Loop to call function
foreach ($arr as $err) { 
              
    // Check each element as
    // code point data 
    check($err); 
  
?>


Output:

false
true
false

Reference: https://www.php.net/manual/en/function.intl-is-failure.php

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