PHP | intl_is_failure() Function

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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);  
}  
  
?> 