43 lines
1 KiB
PHP
43 lines
1 KiB
PHP
<?php
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/**
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* @template T
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* @param T|false $x
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* @return T
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*/
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function false_throws(mixed $x, ?callable $errorgen = null): mixed
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{
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if ($x === false) {
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$msg = "Unexpected false";
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if ($errorgen) {
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$msg = $errorgen();
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}
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throw new \Exception($msg);
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}
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return $x;
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}
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# https://github.com/thecodingmachine/safe/pull/428
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function inet_pton_ex(string $ip_address): string
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{
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return false_throws(inet_pton($ip_address));
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}
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function dir_ex(string $directory): \Directory
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{
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return false_throws(dir($directory));
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}
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function filter_var_ex(mixed $variable, int $filter = FILTER_DEFAULT, mixed $options = null): mixed
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{
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return false_throws(filter_var($variable, $filter, $options));
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}
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function preg_replace_ex(string $pattern, string $replacement, string $subject, int $limit = -1, ?int &$count = null): string
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{
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$res = preg_replace($pattern, $replacement, $subject, $limit, $count);
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if (is_null($res)) {
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throw new \Exception("preg_replace failed");
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}
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return $res;
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}
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