ptarjan
28 linhas
572 B
PHP
28 linhas
572 B
PHP
<?php
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function bungle($s) {
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return 314159;
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}
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function prefix() {
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return "__rename_func_";
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}
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$stub_name = prefix() . 'strtoupper';
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var_dump(strtoupper('tweet'));
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fb_rename_function('strtoupper', $stub_name);
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fb_rename_function('bungle', 'strtoupper');
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var_dump(strtoupper('tweet'));
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// release stringdata
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unset($stub_name);
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// try to allocate something in that memory
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$stub_name = prefix() . 'hagfish';
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$stub_name = prefix() . 'strtoupper';
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fb_rename_function('strtoupper', 'bungle');
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fb_rename_function($stub_name, 'strtoupper');
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var_dump(strtoupper('tweet'));
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