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42 lines
1.0 KiB
PHP
42 lines
1.0 KiB
PHP
--TEST--
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Bug #80972: Memory exhaustion on invalid string offset
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--FILE--
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<?php
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function exceptions_error_handler($severity, $message, $filename, $lineno) {
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if (error_reporting() & $severity) {
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throw new ErrorException($message, 0, $severity, $filename, $lineno);
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}
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}
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set_error_handler('exceptions_error_handler');
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$float = 10e120;
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$string_float = (string) $float;
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$string = 'Here is some text for good measure';
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try {
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echo 'Float casted to string compile', \PHP_EOL;
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$string[(string) 10e120] = 'E';
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var_dump($string);
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} catch (\Throwable $e) {
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echo $e->getMessage(), \PHP_EOL;
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}
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/* This same bug also permits to modify the first byte of a string even if
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* the offset is invalid */
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try {
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/* This must not affect the string value */
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$string["wrong"] = "f";
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} catch (\Throwable $e) {
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echo $e->getMessage() . \PHP_EOL;
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}
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var_dump($string);
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?>
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--EXPECT--
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Float casted to string compile
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Illegal string offset '1.0E+121'
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Illegal string offset 'wrong'
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string(34) "Here is some text for good measure"
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