Menu Samaritan's Purse

COUNT_CHARS

Return information about characters used in a string

SYNTAX

count_chars ( string $string [, int $mode = 0 ] ) : mixed

PARAMETERS

string

The examined string.

mode

See return values.

RETURN

Depending on mode count_chars() returns one of the following:

MODE DESCRIPTION
0 an array with the byte-value as key and the frequency of every byte as value.
1 same as 0 but only byte-values with a frequency greater than zero are listed.
2 same as 0 but only byte-values with a frequency equal to zero are listed.
3 a string containing all unique characters is returned.
4 a string containing all not used characters is returned.

EXAMPLES

STRING

Array
(
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 0
    [7] => 0
    [8] => 0
    [9] => 0
    [10] => 0
    [11] => 0
    [12] => 0
    [13] => 0
    [14] => 0
    [15] => 0
    [16] => 0
    [17] => 0
    [18] => 0
    [19] => 0
    [20] => 0
    [21] => 0
    [22] => 0
    [23] => 0
    [24] => 0
    [25] => 0
    [26] => 0
    [27] => 0
    [28] => 0
    [29] => 0
    [30] => 0
    [31] => 0
    [32] => 0
    [33] => 0
    [34] => 0
    [35] => 0
    [36] => 0
    [37] => 0
    [38] => 0
    [39] => 0
    [40] => 0
    [41] => 0
    [42] => 0
    [43] => 0
    [44] => 0
    [45] => 0
    [46] => 0
    [47] => 0
    [48] => 0
    [49] => 0
    [50] => 0
    [51] => 0
    [52] => 0
    [53] => 0
    [54] => 0
    [55] => 0
    [56] => 0
    [57] => 0
    [58] => 0
    [59] => 0
    [60] => 0
    [61] => 0
    [62] => 0
    [63] => 0
    [64] => 0
    [65] => 0
    [66] => 0
    [67] => 0
    [68] => 0
    [69] => 0
    [70] => 0
    [71] => 0
    [72] => 0
    [73] => 0
    [74] => 0
    [75] => 0
    [76] => 0
    [77] => 0
    [78] => 0
    [79] => 0
    [80] => 0
    [81] => 0
    [82] => 0
    [83] => 0
    [84] => 0
    [85] => 0
    [86] => 0
    [87] => 0
    [88] => 0
    [89] => 0
    [90] => 0
    [91] => 0
    [92] => 0
    [93] => 0
    [94] => 0
    [95] => 0
    [96] => 0
    [97] => 1
    [98] => 1
    [99] => 1
    [100] => 1
    [101] => 1
    [102] => 0
    [103] => 0
    [104] => 0
    [105] => 0
    [106] => 0
    [107] => 0
    [108] => 0
    [109] => 0
    [110] => 0
    [111] => 0
    [112] => 0
    [113] => 0
    [114] => 0
    [115] => 0
    [116] => 0
    [117] => 0
    [118] => 0
    [119] => 0
    [120] => 0
    [121] => 0
    [122] => 0
    [123] => 0
    [124] => 0
    [125] => 0
    [126] => 0
    [127] => 0
    [128] => 0
    [129] => 0
    [130] => 0
    [131] => 0
    [132] => 0
    [133] => 0
    [134] => 0
    [135] => 0
    [136] => 0
    [137] => 0
    [138] => 0
    [139] => 0
    [140] => 0
    [141] => 0
    [142] => 0
    [143] => 0
    [144] => 0
    [145] => 0
    [146] => 0
    [147] => 0
    [148] => 0
    [149] => 0
    [150] => 0
    [151] => 0
    [152] => 0
    [153] => 0
    [154] => 0
    [155] => 0
    [156] => 0
    [157] => 0
    [158] => 0
    [159] => 0
    [160] => 0
    [161] => 0
    [162] => 0
    [163] => 0
    [164] => 0
    [165] => 0
    [166] => 0
    [167] => 0
    [168] => 0
    [169] => 0
    [170] => 0
    [171] => 0
    [172] => 0
    [173] => 0
    [174] => 0
    [175] => 0
    [176] => 0
    [177] => 0
    [178] => 0
    [179] => 0
    [180] => 0
    [181] => 0
    [182] => 0
    [183] => 0
    [184] => 0
    [185] => 0
    [186] => 0
    [187] => 0
    [188] => 0
    [189] => 0
    [190] => 0
    [191] => 0
    [192] => 0
    [193] => 0
    [194] => 0
    [195] => 0
    [196] => 0
    [197] => 0
    [198] => 0
    [199] => 0
    [200] => 0
    [201] => 0
    [202] => 0
    [203] => 0
    [204] => 0
    [205] => 0
    [206] => 0
    [207] => 0
    [208] => 0
    [209] => 0
    [210] => 0
    [211] => 0
    [212] => 0
    [213] => 0
    [214] => 0
    [215] => 0
    [216] => 0
    [217] => 0
    [218] => 0
    [219] => 0
    [220] => 0
    [221] => 0
    [222] => 0
    [223] => 0
    [224] => 0
    [225] => 0
    [226] => 0
    [227] => 0
    [228] => 0
    [229] => 0
    [230] => 0
    [231] => 0
    [232] => 0
    [233] => 0
    [234] => 0
    [235] => 0
    [236] => 0
    [237] => 0
    [238] => 0
    [239] => 0
    [240] => 0
    [241] => 0
    [242] => 0
    [243] => 0
    [244] => 0
    [245] => 0
    [246] => 0
    [247] => 0
    [248] => 0
    [249] => 0
    [250] => 0
    [251] => 0
    [252] => 0
    [253] => 0
    [254] => 0
    [255] => 0
)

MODE | 0

Array
(
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 0
    [7] => 0
    [8] => 0
    [9] => 0
    [10] => 0
    [11] => 0
    [12] => 0
    [13] => 0
    [14] => 0
    [15] => 0
    [16] => 0
    [17] => 0
    [18] => 0
    [19] => 0
    [20] => 0
    [21] => 0
    [22] => 0
    [23] => 0
    [24] => 0
    [25] => 0
    [26] => 0
    [27] => 0
    [28] => 0
    [29] => 0
    [30] => 0
    [31] => 0
    [32] => 0
    [33] => 0
    [34] => 0
    [35] => 0
    [36] => 0
    [37] => 0
    [38] => 0
    [39] => 0
    [40] => 0
    [41] => 0
    [42] => 0
    [43] => 0
    [44] => 0
    [45] => 0
    [46] => 0
    [47] => 0
    [48] => 0
    [49] => 0
    [50] => 0
    [51] => 0
    [52] => 0
    [53] => 0
    [54] => 0
    [55] => 0
    [56] => 0
    [57] => 0
    [58] => 0
    [59] => 0
    [60] => 0
    [61] => 0
    [62] => 0
    [63] => 0
    [64] => 0
    [65] => 0
    [66] => 0
    [67] => 0
    [68] => 0
    [69] => 0
    [70] => 0
    [71] => 0
    [72] => 0
    [73] => 0
    [74] => 0
    [75] => 0
    [76] => 0
    [77] => 0
    [78] => 0
    [79] => 0
    [80] => 0
    [81] => 0
    [82] => 0
    [83] => 0
    [84] => 0
    [85] => 0
    [86] => 0
    [87] => 0
    [88] => 0
    [89] => 0
    [90] => 0
    [91] => 0
    [92] => 0
    [93] => 0
    [94] => 0
    [95] => 0
    [96] => 0
    [97] => 1
    [98] => 1
    [99] => 1
    [100] => 1
    [101] => 1
    [102] => 0
    [103] => 0
    [104] => 0
    [105] => 0
    [106] => 0
    [107] => 0
    [108] => 0
    [109] => 0
    [110] => 0
    [111] => 0
    [112] => 0
    [113] => 0
    [114] => 0
    [115] => 0
    [116] => 0
    [117] => 0
    [118] => 0
    [119] => 0
    [120] => 0
    [121] => 0
    [122] => 0
    [123] => 0
    [124] => 0
    [125] => 0
    [126] => 0
    [127] => 0
    [128] => 0
    [129] => 0
    [130] => 0
    [131] => 0
    [132] => 0
    [133] => 0
    [134] => 0
    [135] => 0
    [136] => 0
    [137] => 0
    [138] => 0
    [139] => 0
    [140] => 0
    [141] => 0
    [142] => 0
    [143] => 0
    [144] => 0
    [145] => 0
    [146] => 0
    [147] => 0
    [148] => 0
    [149] => 0
    [150] => 0
    [151] => 0
    [152] => 0
    [153] => 0
    [154] => 0
    [155] => 0
    [156] => 0
    [157] => 0
    [158] => 0
    [159] => 0
    [160] => 0
    [161] => 0
    [162] => 0
    [163] => 0
    [164] => 0
    [165] => 0
    [166] => 0
    [167] => 0
    [168] => 0
    [169] => 0
    [170] => 0
    [171] => 0
    [172] => 0
    [173] => 0
    [174] => 0
    [175] => 0
    [176] => 0
    [177] => 0
    [178] => 0
    [179] => 0
    [180] => 0
    [181] => 0
    [182] => 0
    [183] => 0
    [184] => 0
    [185] => 0
    [186] => 0
    [187] => 0
    [188] => 0
    [189] => 0
    [190] => 0
    [191] => 0
    [192] => 0
    [193] => 0
    [194] => 0
    [195] => 0
    [196] => 0
    [197] => 0
    [198] => 0
    [199] => 0
    [200] => 0
    [201] => 0
    [202] => 0
    [203] => 0
    [204] => 0
    [205] => 0
    [206] => 0
    [207] => 0
    [208] => 0
    [209] => 0
    [210] => 0
    [211] => 0
    [212] => 0
    [213] => 0
    [214] => 0
    [215] => 0
    [216] => 0
    [217] => 0
    [218] => 0
    [219] => 0
    [220] => 0
    [221] => 0
    [222] => 0
    [223] => 0
    [224] => 0
    [225] => 0
    [226] => 0
    [227] => 0
    [228] => 0
    [229] => 0
    [230] => 0
    [231] => 0
    [232] => 0
    [233] => 0
    [234] => 0
    [235] => 0
    [236] => 0
    [237] => 0
    [238] => 0
    [239] => 0
    [240] => 0
    [241] => 0
    [242] => 0
    [243] => 0
    [244] => 0
    [245] => 0
    [246] => 0
    [247] => 0
    [248] => 0
    [249] => 0
    [250] => 0
    [251] => 0
    [252] => 0
    [253] => 0
    [254] => 0
    [255] => 0
)

MODE | 1

Array
(
    [97] => 1
    [98] => 1
    [99] => 1
    [100] => 1
    [101] => 1
)

MODE | 2

Array
(
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 0
    [7] => 0
    [8] => 0
    [9] => 0
    [10] => 0
    [11] => 0
    [12] => 0
    [13] => 0
    [14] => 0
    [15] => 0
    [16] => 0
    [17] => 0
    [18] => 0
    [19] => 0
    [20] => 0
    [21] => 0
    [22] => 0
    [23] => 0
    [24] => 0
    [25] => 0
    [26] => 0
    [27] => 0
    [28] => 0
    [29] => 0
    [30] => 0
    [31] => 0
    [32] => 0
    [33] => 0
    [34] => 0
    [35] => 0
    [36] => 0
    [37] => 0
    [38] => 0
    [39] => 0
    [40] => 0
    [41] => 0
    [42] => 0
    [43] => 0
    [44] => 0
    [45] => 0
    [46] => 0
    [47] => 0
    [48] => 0
    [49] => 0
    [50] => 0
    [51] => 0
    [52] => 0
    [53] => 0
    [54] => 0
    [55] => 0
    [56] => 0
    [57] => 0
    [58] => 0
    [59] => 0
    [60] => 0
    [61] => 0
    [62] => 0
    [63] => 0
    [64] => 0
    [65] => 0
    [66] => 0
    [67] => 0
    [68] => 0
    [69] => 0
    [70] => 0
    [71] => 0
    [72] => 0
    [73] => 0
    [74] => 0
    [75] => 0
    [76] => 0
    [77] => 0
    [78] => 0
    [79] => 0
    [80] => 0
    [81] => 0
    [82] => 0
    [83] => 0
    [84] => 0
    [85] => 0
    [86] => 0
    [87] => 0
    [88] => 0
    [89] => 0
    [90] => 0
    [91] => 0
    [92] => 0
    [93] => 0
    [94] => 0
    [95] => 0
    [96] => 0
    [102] => 0
    [103] => 0
    [104] => 0
    [105] => 0
    [106] => 0
    [107] => 0
    [108] => 0
    [109] => 0
    [110] => 0
    [111] => 0
    [112] => 0
    [113] => 0
    [114] => 0
    [115] => 0
    [116] => 0
    [117] => 0
    [118] => 0
    [119] => 0
    [120] => 0
    [121] => 0
    [122] => 0
    [123] => 0
    [124] => 0
    [125] => 0
    [126] => 0
    [127] => 0
    [128] => 0
    [129] => 0
    [130] => 0
    [131] => 0
    [132] => 0
    [133] => 0
    [134] => 0
    [135] => 0
    [136] => 0
    [137] => 0
    [138] => 0
    [139] => 0
    [140] => 0
    [141] => 0
    [142] => 0
    [143] => 0
    [144] => 0
    [145] => 0
    [146] => 0
    [147] => 0
    [148] => 0
    [149] => 0
    [150] => 0
    [151] => 0
    [152] => 0
    [153] => 0
    [154] => 0
    [155] => 0
    [156] => 0
    [157] => 0
    [158] => 0
    [159] => 0
    [160] => 0
    [161] => 0
    [162] => 0
    [163] => 0
    [164] => 0
    [165] => 0
    [166] => 0
    [167] => 0
    [168] => 0
    [169] => 0
    [170] => 0
    [171] => 0
    [172] => 0
    [173] => 0
    [174] => 0
    [175] => 0
    [176] => 0
    [177] => 0
    [178] => 0
    [179] => 0
    [180] => 0
    [181] => 0
    [182] => 0
    [183] => 0
    [184] => 0
    [185] => 0
    [186] => 0
    [187] => 0
    [188] => 0
    [189] => 0
    [190] => 0
    [191] => 0
    [192] => 0
    [193] => 0
    [194] => 0
    [195] => 0
    [196] => 0
    [197] => 0
    [198] => 0
    [199] => 0
    [200] => 0
    [201] => 0
    [202] => 0
    [203] => 0
    [204] => 0
    [205] => 0
    [206] => 0
    [207] => 0
    [208] => 0
    [209] => 0
    [210] => 0
    [211] => 0
    [212] => 0
    [213] => 0
    [214] => 0
    [215] => 0
    [216] => 0
    [217] => 0
    [218] => 0
    [219] => 0
    [220] => 0
    [221] => 0
    [222] => 0
    [223] => 0
    [224] => 0
    [225] => 0
    [226] => 0
    [227] => 0
    [228] => 0
    [229] => 0
    [230] => 0
    [231] => 0
    [232] => 0
    [233] => 0
    [234] => 0
    [235] => 0
    [236] => 0
    [237] => 0
    [238] => 0
    [239] => 0
    [240] => 0
    [241] => 0
    [242] => 0
    [243] => 0
    [244] => 0
    [245] => 0
    [246] => 0
    [247] => 0
    [248] => 0
    [249] => 0
    [250] => 0
    [251] => 0
    [252] => 0
    [253] => 0
    [254] => 0
    [255] => 0
)

MODE | 3

abcde

MODE | 4


CHR

1
1 !
1 H
1 W
1 d
1 e
3 l
2 o
1 r

PHP