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PHP Intl_is_failure () function

Syntax:
bool intl_is_failure ($error_code)
Parameters:This function takes one parameter $error_code,which is the value returned by intl_get_error_code(), collator_get_error_code() functions.Returned value:if the code points to any either failure, it returns True, and on success or warning returns False.The following programs illustrate the intl_is_failure() function in PHP:Program 1:  
// Function definition function check ( $err_code ) { var_export (intl_is_failure ( $err_code )); echo "" ; }  
// call the function using error_code as a parameter
check (U_USING_FALLBACK_WARNING);
check (U_ILLEGAL_ARGUMENT_ERROR);  
?>
Exit:
false true
Program 2:  
// Function definition function check ( $err_code ) { var_export (intl_is_failure ( $err_code )); echo "" ; }  
// Declare an array that contains the error code $arr = array ( U_ZERO_ERROR, U_ILLEGAL_ARGUMENT_ERROR, U_USING_FALLBACK_WARNING, );  
// Function call loop foreach ( $arr as $err ) { // Validate each element as // code point data check ( $err ); }  
?>
Exit:
false true false
Link: https://www. php.net/manual/en/function.intl-is-failure.php

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