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<?php $pos = strpos('PHP 5.6.10', phpversion()); echo phpversion(); if($pos !== false){ print "<pre>"; $arr = timezone_abbreviations_list(); print_r(array_keys($arr)); die; } ?>
based on VvVgU
Output for 7.2.0
7.2.0
Output for 7.1.10
7.1.10
Output for 7.1.7
7.1.7
Output for 7.1.6
7.1.6
Output for 7.1.5
7.1.5
Output for 7.1.0
7.1.0
Output for 7.0.20
7.0.20
Output for 7.0.6
7.0.6
Output for 7.0.5
7.0.5
Output for 7.0.4
7.0.4
Output for 7.0.3
7.0.3
Output for 7.0.2
7.0.2
Output for 7.0.1
7.0.1
Output for 7.0.0
7.0.0
Output for 5.6.28
5.6.28
Output for 5.6.21
5.6.21
Output for 5.6.20
5.6.20
Output for 5.6.19
5.6.19
Output for 5.6.18
5.6.18
Output for 5.6.17
5.6.17
Output for 5.6.16
5.6.16
Output for 5.6.15
5.6.15
Output for 5.6.14
5.6.14
Output for 5.6.13
5.6.13
Output for 5.6.12
5.6.12
Output for 5.6.11
5.6.11
Output for 5.6.10
5.6.10<pre>Array ( [0] => acdt [1] => acst [2] => act [3] => acwdt [4] => acwst [5] => addt [6] => admt [7] => adt [8] => aedt [9] => aest [10] => aft [11] => ahdt [12] => ahst [13] => akdt [14] => akst [15] => aktst [16] => aktt [17] => almst [18] => almt [19] => amst [20] => amt [21] => anast [22] => anat [23] => ant [24] => aot [25] => apt [26] => aqtst [27] => aqtt [28] => arst [29] => art [30] => ashst [31] => asht [32] => ast [33] => awdt [34] => awst [35] => awt [36] => azomt [37] => azost [38] => azot [39] => azst [40] => azt [41] => bakst [42] => bakt [43] => bdst [44] => bdt [45] => beat [46] => beaut [47] => bmt [48] => bnt [49] => bortst [50] => bort [51] => bost [52] => bot [53] => brst [54] => brt [55] => bst [56] => btt [57] => burt [58] => cant [59] => capt [60] => cast [61] => cat [62] => cawt [63] => cct [64] => cddt [65] => cdt [66] => cemt [67] => cest [68] => cet [69] => cgst [70] => cgt [71] => chadt [72] => chast [73] => chdt [74] => chost [75] => chot [76] => chut [77] => ckhst [78] => ckt [79] => clst [80] => clt [81] => cmt [82] => cost [83] => cot [84] => cpt [85] => cst [86] => cut [87] => cvst [88] => cvt [89] => cwt [90] => cxt [91] => chst [92] => dact [93] => davt [94] => ddut [95] => dmt [96] => dusst [97] => dust [98] => easst [99] => east [100] => eat [101] => ect [102] => eddt [103] => edt [104] => eest [105] => eet [106] => egst [107] => egt [108] => ehdt [109] => emt [110] => ept [111] => est [112] => ewt [113] => fet [114] => ffmt [115] => fjst [116] => fjt [117] => fkst [118] => fkt [119] => fmt [120] => fnst [121] => fnt [122] => fort [123] => frust [124] => frut [125] => galt [126] => gamt [127] => gbgt [128] => gest [129] => get [130] => gft [131] => ghst [132] => gilt [133] => gmt [134] => gst [135] => gyt [136] => hadt [137] => hast [138] => hdt [139] => hkst [140] => hkt [141] => hmt [142] => hovst [143] => hovt [144] => hst [145] => ict [146] => iddt [147] => idt [148] => ihst [149] => imt [150] => iot [151] => irdt [152] => irkst [153] => irkt [154] => irst [155] => isst [156] => ist [157] => javt [158] => jcst [159] => jdt [160] => jmt [161] => jst [162] => jwst [163] => kart [164] => kdt [165] => kgst [166] => kgt [167] => kizst [168] => kizt [169] => kmt [170] => kost [171] => krast [172] => krat [173] => kst [174] => kuyst [175] => kuyt [176] => kwat [177] => lhdt [178] => lhst [179] => lint [180] => lkt [181] => lrt [182] => lst [183] => madmt [184] => madst [185] => madt [186] => magst [187] => magt [188] => malst [189] => malt [190] => mart [191] => mawt [192] => mddt [193] => mdst [194] => mdt [195] => mest [196] => met [197] => mht [198] => mist [199] => mmt [200] => most [201] => mot [202] => mpt [203] => msd [204] => msk [205] => msm [206] => mst [207] => must [208] => mut [209] => mvt [210] => mwt [211] => myt [212] => ncst [213] => nct [214] => nddt [215] => ndt [216] => negt [217] => nest [218] => net [219] => nft [220] => nmt [221] => novst [222] => novt [223] => npt [224] => nrt [225] => nst [226] => nut [227] => nwt [228] => nzdt [229] => nzmt [230] => nzst [231] => omsst [232] => omst [233] => orast [234] => orat [235] => pddt [236] => pdt [237] => pest [238] => petst [239] => pett [240] => pet [241] => pgt [242] => phot [243] => phst [244] => pht [245] => pkst [246] => pkt [247] => pmdt [248] => pmst [249] => pmt [250] => pnt [251] => pont [252] => ppmt [253] => ppt [254] => pst [255] => pwt [256] => pyst [257] => pyt [258] => qmt [259] => qyzst [260] => qyzt [261] => ret [262] => rmt [263] => rott [264] => sakst [265] => sakt [266] => samst [267] => samt [268] => sast [269] => sbt [270] => sct [271] => sdmt [272] => sdt [273] => sgt [274] => shest [275] => shet [276] => sjmt [277] => smt [278] => sret [279] => srt [280] => sst [281] => stat [282] => svest [283] => svet [284] => swat [285] => syot [286] => taht [287] => tasst [288] => tast [289] => tbist [290] => tbit [291] => tbmt [292] => tft [293] => tjt [294] => tkt [295] => tlt [296] => tmt [297] => tost [298] => tot [299] => trst [300] => trt [301] => tsat [302] => tvt [303] => uct [304] => ulast [305] => ulat [306] => urast [307] => urat [308] => utc [309] => uyhst [310] => uyst [311] => uyt [312] => uzst [313] => uzt [314] => vet [315] => vlast [316] => vlat [317] => volst [318] => volt [319] => vost [320] => vust [321] => vut [322] => wakt [323] => warst [324] => wart [325] => wast [326] => wat [327] => wemt [328] => west [329] => wet [330] => wft [331] => wgst [332] => wgt [333] => wib [334] => wita [335] => wit [336] => wmt [337] => wsdt [338] => wsst [339] => xjt [340] => yakst [341] => yakt [342] => yddt [343] => ydt [344] => yekst [345] => yekt [346] => yerst [347] => yert [348] => ypt [349] => yst [350] => ywt [351] => a [352] => b [353] => c [354] => d [355] => e [356] => f [357] => g [358] => h [359] => i [360] => k [361] => l [362] => m [363] => n [364] => o [365] => p [366] => q [367] => r [368] => s [369] => t [370] => u [371] => v [372] => w [373] => x [374] => y [375] => zzz [376] => z )
Output for 5.6.9
5.6.9
Output for 5.6.8
5.6.8
Output for 5.6.7
5.6.7
Output for 5.5.35
5.5.35
Output for 5.5.34
5.5.34
Output for 5.5.33
5.5.33
Output for 5.5.32
5.5.32
Output for 5.5.31
5.5.31
Output for 5.5.30
5.5.30
Output for 5.5.29
5.5.29
Output for 5.5.28
5.5.28
Output for 5.5.27
5.5.27
Output for 5.5.26
5.5.26
Output for 5.5.25
5.5.25
Output for 5.5.24
5.5.24
Output for 5.4.45
5.4.45
Output for 5.4.44
5.4.44
Output for 5.4.43
5.4.43
Output for 5.4.42
5.4.42
Output for 5.4.41
5.4.41
Output for 5.4.40
5.4.40
Output for 5.4.39
5.4.39
Output for 5.4.38
5.4.38
Output for 5.4.37
5.4.37
Output for 5.4.36
5.4.36
Output for 5.4.35
5.4.35
Output for 5.4.34
5.4.34
Output for 5.4.32
5.4.32
Output for 5.4.31
5.4.31
Output for 5.4.30
5.4.30
Output for 5.4.29
5.4.29
Output for 5.4.28
5.4.28
Output for 5.4.27
5.4.27
Output for 5.4.26
5.4.26
Output for 5.4.25
5.4.25
Output for 5.4.24
5.4.24
Output for 5.4.23
5.4.23
Output for 5.4.22
5.4.22
Output for 5.4.21
5.4.21
Output for 5.4.20
5.4.20
Output for 5.4.19
5.4.19
Output for 5.4.18
5.4.18
Output for 5.4.17
5.4.17
Output for 5.4.16
5.4.16
Output for 5.4.15
5.4.15
Output for 5.4.14
5.4.14
Output for 5.4.13
5.4.13
Output for 5.4.12
5.4.12
Output for 5.4.11
5.4.11
Output for 5.4.10
5.4.10
Output for 5.4.9
5.4.9
Output for 5.4.8
5.4.8
Output for 5.4.7
5.4.7
Output for 5.4.6
5.4.6
Output for 5.4.5
5.4.5
Output for 5.4.4
5.4.4
Output for 5.4.3
5.4.3
Output for 5.4.2
5.4.2
Output for 5.4.1
5.4.1
Output for 5.3.29
5.3.29
Output for 5.3.28
5.3.28
Output for 5.3.27
5.3.27
Output for 5.3.26
5.3.26
Output for 5.3.25
5.3.25
Output for 5.3.24
5.3.24
Output for 5.3.23
5.3.23
Output for 5.3.22
5.3.22
Output for 5.3.21
5.3.21
Output for 5.3.20
5.3.20
Output for 5.3.19
5.3.19
Output for 5.3.18
5.3.18