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<?php
function skipFunction($function): bool {
if (false
/* expect input / hang */
|| $function === 'readline'
|| $function === 'readline_read_history'
|| $function === 'readline_write_history'
/* intentionally violate invariants */
|| $function === 'zend_create_unterminated_string'
|| $function === 'zend_test_array_return'
|| $function === 'zend_leak_bytes'
/* mess with output */
|| (is_string($function) && str_starts_with($function, 'ob_'))
|| $function === 'output_add_rewrite_var'
|| $function === 'error_log'
/* may spend a lot of time waiting for connection timeouts */
|| (is_string($function) && str_contains($function, 'connect'))
|| (is_string($function) && str_starts_with($function, 'snmp'))
|| (is_array($function) && get_class($function[0]) === mysqli::class
&& in_array($function[1], ['__construct', 'connect', 'real_connect']))
/* misc */
|| $function === 'mail'
|| $function === 'mb_send_mail'
|| $function === 'pcntl_fork'
|| $function === 'posix_kill'
|| $function === 'posix_setrlimit'
|| $function === 'sapi_windows_generate_ctrl_event'
|| $function === 'imagegrabscreen'
) {
return true;
}
if ($function[0] instanceof SoapServer) {
/* TODO: Uses fatal errors */
return true;
}
return false;
}
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