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<?php class AliasPool { protected static $i = 0; public static function get () { $alias = ''; $j = self::$i; do { $alias = chr(($j % 26) + ord('a')) . $alias; $j = floor($j / 26); } while ($j > 0); self::$i++; return 'tag_' .$alias; } } for ($i = 0; $i < 60; ++$i) { var_dump(AliasPool::get()); print "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
string(5) "tag_a" string(5) "tag_b" string(5) "tag_c" string(5) "tag_d" string(5) "tag_e" string(5) "tag_f" string(5) "tag_g" string(5) "tag_h" string(5) "tag_i" string(5) "tag_j" string(5) "tag_k" string(5) "tag_l" string(5) "tag_m" string(5) "tag_n" string(5) "tag_o" string(5) "tag_p" string(5) "tag_q" string(5) "tag_r" string(5) "tag_s" string(5) "tag_t" string(5) "tag_u" string(5) "tag_v" string(5) "tag_w" string(5) "tag_x" string(5) "tag_y" string(5) "tag_z" string(6) "tag_ba" string(6) "tag_bb" string(6) "tag_bc" string(6) "tag_bd" string(6) "tag_be" string(6) "tag_bf" string(6) "tag_bg" string(6) "tag_bh" string(6) "tag_bi" string(6) "tag_bj" string(6) "tag_bk" string(6) "tag_bl" string(6) "tag_bm" string(6) "tag_bn" string(6) "tag_bo" string(6) "tag_bp" string(6) "tag_bq" string(6) "tag_br" string(6) "tag_bs" string(6) "tag_bt" string(6) "tag_bu" string(6) "tag_bv" string(6) "tag_bw" string(6) "tag_bx" string(6) "tag_by" string(6) "tag_bz" string(6) "tag_ca" string(6) "tag_cb" string(6) "tag_cc" string(6) "tag_cd" string(6) "tag_ce" string(6) "tag_cf" string(6) "tag_cg" string(6) "tag_ch"

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