Date PHP Date ou Bug format d/m/Y - date finit 1970-01-01

Question

Pourquoi les dates suivantes (Indépendamment de l'année) donnent 1970-01-01 en utilisant le code suivant:
echo date('Y-m-d',strtotime('25/12/2000')).
Version PHP 7.0.21

Array ( [0] => 13/01/2000 [1] => 14/01/2000 [2] => 15/01/2000 [3] => 16/01/2000 [4] => 17/01/2000 [5] => 18/01/2000 [6] => 19/01/2000 [7] => 20/01/2000 [8] => 21/01/2000 [9] => 22/01/2000 [10] => 23/01/2000 [11] => 24/01/2000 [12] => 25/01/2000 [13] => 26/01/2000 [14] => 27/01/2000 [15] => 28/01/2000 [16] => 29/01/2000 [17] => 30/01/2000 [18] => 31/01/2000 [19] => 13/02/2000 [20] => 14/02/2000 [21] => 15/02/2000 [22] => 16/02/2000 [23] => 17/02/2000 [24] => 18/02/2000 [25] => 19/02/2000 [26] => 20/02/2000 [27] => 21/02/2000 [28] => 22/02/2000 [29] => 23/02/2000 [30] => 24/02/2000 [31] => 25/02/2000 [32] => 26/02/2000 [33] => 27/02/2000 [34] => 28/02/2000 [35] => 29/02/2000 [36] => 30/02/2000 [37] => 31/02/2000 [38] => 13/03/2000 [39] => 14/03/2000 [40] => 15/03/2000 [41] => 16/03/2000 [42] => 17/03/2000 [43] => 18/03/2000 [44] => 19/03/2000 [45] => 20/03/2000 [46] => 21/03/2000 [47] => 22/03/2000 [48] => 23/03/2000 [49] => 24/03/2000 [50] => 25/03/2000 [51] => 26/03/2000 [52] => 27/03/2000 [53] => 28/03/2000 [54] => 29/03/2000 [55] => 30/03/2000 [56] => 31/03/2000 [57] => 13/04/2000 [58] => 14/04/2000 [59] => 15/04/2000 [60] => 16/04/2000 [61] => 17/04/2000 [62] => 18/04/2000 [63] => 19/04/2000 [64] => 20/04/2000 [65] => 21/04/2000 [66] => 22/04/2000 [67] => 23/04/2000 [68] => 24/04/2000 [69] => 25/04/2000 [70] => 26/04/2000 [71] => 27/04/2000 [72] => 28/04/2000 [73] => 29/04/2000 [74] => 30/04/2000 [75] => 31/04/2000 [76] => 13/05/2000 [77] => 14/05/2000 [78] => 15/05/2000 [79] => 16/05/2000 [80] => 17/05/2000 [81] => 18/05/2000 [82] => 19/05/2000 [83] => 20/05/2000 [84] => 21/05/2000 [85] => 22/05/2000 [86] => 23/05/2000 [87] => 24/05/2000 [88] => 25/05/2000 [89] => 26/05/2000 [90] => 27/05/2000 [91] => 28/05/2000 [92] => 29/05/2000 [93] => 30/05/2000 [94] => 31/05/2000 [95] => 13/06/2000 [96] => 14/06/2000 [97] => 15/06/2000 [98] => 16/06/2000 [99] => 17/06/2000 [100] => 18/06/2000 [101] => 19/06/2000 [102] => 20/06/2000 [103] => 21/06/2000 [104] => 22/06/2000 [105] => 23/06/2000 [106] => 24/06/2000 [107] => 25/06/2000 [108] => 26/06/2000 [109] => 27/06/2000 [110] => 28/06/2000 [111] => 29/06/2000 [112] => 30/06/2000 [113] => 31/06/2000 [114] => 13/07/2000 [115] => 14/07/2000 [116] => 15/07/2000 [117] => 16/07/2000 [118] => 17/07/2000 [119] => 18/07/2000 [120] => 19/07/2000 [121] => 20/07/2000 [122] => 21/07/2000 [123] => 22/07/2000 [124] => 23/07/2000 [125] => 24/07/2000 [126] => 25/07/2000 [127] => 26/07/2000 [128] => 27/07/2000 [129] => 28/07/2000 [130] => 29/07/2000 [131] => 30/07/2000 [132] => 31/07/2000 [133] => 13/08/2000 [134] => 14/08/2000 [135] => 15/08/2000 [136] => 16/08/2000 [137] => 17/08/2000 [138] => 18/08/2000 [139] => 19/08/2000 [140] => 20/08/2000 [141] => 21/08/2000 [142] => 22/08/2000 [143] => 23/08/2000 [144] => 24/08/2000 [145] => 25/08/2000 [146] => 26/08/2000 [147] => 27/08/2000 [148] => 28/08/2000 [149] => 29/08/2000 [150] => 30/08/2000 [151] => 31/08/2000 [152] => 13/09/2000 [153] => 14/09/2000 [154] => 15/09/2000 [155] => 16/09/2000 [156] => 17/09/2000 [157] => 18/09/2000 [158] => 19/09/2000 [159] => 20/09/2000 [160] => 21/09/2000 [161] => 22/09/2000 [162] => 23/09/2000 [163] => 24/09/2000 [164] => 25/09/2000 [165] => 26/09/2000 [166] => 27/09/2000 [167] => 28/09/2000 [168] => 29/09/2000 [169] => 30/09/2000 [170] => 31/09/2000 [171] => 13/10/2000 [172] => 14/10/2000 [173] => 15/10/2000 [174] => 16/10/2000 [175] => 17/10/2000 [176] => 18/10/2000 [177] => 19/10/2000 [178] => 20/10/2000 [179] => 21/10/2000 [180] => 22/10/2000 [181] => 23/10/2000 [182] => 24/10/2000 [183] => 25/10/2000 [184] => 26/10/2000 [185] => 27/10/2000 [186] => 28/10/2000 [187] => 29/10/2000 [188] => 30/10/2000 [189] => 31/10/2000 [190] => 13/11/2000 [191] => 14/11/2000 [192] => 15/11/2000 [193] => 16/11/2000 [194] => 17/11/2000 [195] => 18/11/2000 [196] => 19/11/2000 [197] => 20/11/2000 [198] => 21/11/2000 [199] => 22/11/2000 [200] => 23/11/2000 [201] => 24/11/2000 [202] => 25/11/2000 [203] => 26/11/2000 [204] => 27/11/2000 [205] => 28/11/2000 [206] => 29/11/2000 [207] => 30/11/2000 [208] => 31/11/2000 [209] => 13/12/2000 [210] => 14/12/2000 [211] => 15/12/2000 [212] => 16/12/2000 [213] => 17/12/2000 [214] => 18/12/2000 [215] => 19/12/2000 [216] => 20/12/2000 [217] => 21/12/2000 [218] => 22/12/2000 [219] => 23/12/2000 [220] => 24/12/2000 [221] => 25/12/2000 [222] => 26/12/2000 [223] => 27/12/2000 [224] => 28/12/2000 [225] => 29/12/2000 [226] => 30/12/2000 [227] => 31/12/2000 )

Answer 1

Essayez d'utiliser '-' au lieu de '/'

31/12/2000 à 31-12-2000

Answer 2

strtotime ne Acceptez le format que vous lui fournissez Utilisez DateTime, qui est prévu pour cela

$dt = new \DateTime::createFromFormat('d/m/Y','25/12/2000'); 
echo $dt->format('Y-m-d');