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<?php $txt = " {ABC} + 1 - 1 {DEF} + 2 - 2 {IJK} + 3 - 3 {LMN} + 4 - 4 "; preg_match_all('/{[^{]*/', $txt, $matches); print_r($matches);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => {ABC} + 1 - 1 [1] => {DEF} + 2 - 2 [2] => {IJK} + 3 - 3 [3] => {LMN} + 4 - 4 ) )

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