What are the potential pitfalls of using outdated PHP functions like ereg and split in PHP7?

Using outdated PHP functions like ereg and split in PHP7 can lead to deprecated function warnings and errors, as these functions have been removed in PHP7. To fix this issue, you should replace these functions with their updated counterparts, such as preg_match for ereg and explode for split. 

// Before
$pattern = '/[0-9]+/';
$string = '123abc';
if (ereg($pattern, $string)) {
    echo 'Match found';
}

// After
$pattern = '/[0-9]+/';
$string = '123abc';
if (preg_match($pattern, $string)) {
    echo 'Match found';
}

Keywords

ereg split PHP7 deprecated functions compatibility issues

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