Array, replace returns extra mystery char

PHP
1

Thank you for looking at this. This is so simple and straight forward that for the life of me can’t figure out. If $cc is US or YT I get the correct 3 char country code. If $cc is LS it returns LSOM ?? It should be LSO, where is the M coming from??

This should be simple and I should be able to figure it out but I am stumped here.


function two_three ($in){

$two = array('AF', 'AL', 'DZ', 'AS', 'AD', 'AO', 'AI', 'AQ', 'AG', 'AR', 'AM', 'AW', 'AU', 'AT', 'AZ', 'BS', 'BH', 'BD', 'BB', 'BY', 'BE', 'BZ', 'BJ', 'BM', 'BT', 'BO', 'BA', 'BW', 'BV', 'BR', 'IO', 'BN', 'BG', 'BF', 'BI', 'KH', 'CM', 'CA', 'CV', 'KY', 'CF', 'TD', 'CL', 'CN', 'CX', 'CC', 'CO', 'KM', 'CG', 'CD', 'CK', 'CR', 'CI', 'HR', 'CU', 'CY', 'CZ', 'DK', 'DJ', 'DM', 'DO', 'TP', 'EC', 'EG', 'SV', 'GQ', 'ER', 'EE', 'ET', 'FK', 'FO', 'FJ', 'FI', 'FR', 'FX', 'GF', 'PF', 'TF', 'GA', 'GM', 'GE', 'DE', 'GH', 'GI', 'GR', 'GL', 'GD', 'GP', 'GU', 'GT', 'GN', 'GW', 'GY', 'HT', 'HM', 'VA', 'HN', 'HK', 'HU', 'IS', 'IN', 'ID', 'IR', 'IQ', 'IE', 'IL', 'IT', 'JM', 'JP', 'JO', 'KZ', 'KE', 'KI', 'KP', 'KR', 'KW', 'KG', 'LA', 'LV', 'LB', 'LS', 'LR', 'LY', 'LI', 'LT', 'LU', 'MO', 'MK', 'MG', 'MW', 'MY', 'MV', 'ML', 'MT', 'MH', 'MQ', 'MR', 'MU', 'YT', 'MX', 'FM', 'MD', 'MC', 'MN', 'MS', 'MA', 'MZ', 'MM', 'NA', 'NR', 'NP', 'NL', 'AN', 'NC', 'NZ', 'NI', 'NE', 'NG', 'NU', 'NF', 'MP', 'NO', 'OM', 'PK', 'PW', 'PA', 'PG', 'PY', 'PE', 'PH', 'PN', 'PL', 'PT', 'PR', 'QA', 'RE', 'RO', 'RU', 'RW', 'KN', 'LC', 'VC', 'WS', 'SM', 'ST', 'SA', 'SN', 'SC', 'SL', 'SG', 'SK', 'SI', 'SB', 'SO', 'ZA', 'GS', 'ES', 'LK', 'SH', 'PM', 'SD', 'SR', 'SJ', 'SZ', 'SE', 'CH', 'SY', 'TW', 'TJ', 'TZ', 'TH', 'TG', 'TK', 'TO', 'TT', 'TN', 'TR', 'TM', 'TC', 'TV', 'UG', 'UA', 'AE', 'GB', 'US', 'UM', 'UY', 'UZ', 'VU', 'VE', 'VN', 'VG', 'VI', 'WF', 'EH', 'YE', 'YU', 'ZM', 'ZW');

$three = array('AFG', 'ALB', 'DZA', 'ASM', 'AND', 'AGO', 'AIA', 'ATA', 'ATG', 'ARG', 'ARM', 'ABW', 'AUS', 'AUT', 'AZE', 'BHS', 'BHR', 'BGD', 'BRB', 'BLR', 'BEL', 'BLZ', 'BEN', 'BMU', 'BTN', 'BOL', 'BIH', 'BWA', 'BVT', 'BRA', 'IOT', 'BRN', 'BGR', 'BFA', 'BDI', 'KHM', 'CMR', 'CAN', 'CPV', 'CYM', 'CAF', 'TCD', 'CHL', 'CHN', 'CXR', 'CCK', 'COL', 'COM', 'COG', 'COD', 'COK', 'CRI', 'CIV', 'HRV', 'CUB', 'CYP', 'CZE', 'DNK', 'DJI', 'DMA', 'DOM', 'TMP', 'ECU', 'EGY', 'SLV', 'GNQ', 'ERI', 'EST', 'ETH ', 'FLK', 'FRO', 'FJI', 'FIN', 'FRA', 'FXX', 'GUF', 'PYF', 'ATF', 'GAB', 'GMB', 'GEO', 'DEU', 'GHA', 'GIB', 'GRC', 'GRL', 'GRD', 'GLP', 'GUM', 'GTM', 'GIN', 'GNB', 'GUY', 'HTI', 'HMD', 'VAT', 'HND', 'HKG', 'HUN', 'ISL', 'IND', 'IDN', 'IRN', 'IRQ', 'IRL', 'ISR', 'ITA', 'JAM', 'JPN', 'JOR', 'KAZ', 'KEN', 'KIR', 'PRK', 'KOR', 'KWT', 'KGZ', 'LAO', 'LVA', 'LBN', 'LSO', 'LBR', 'LBY', 'LIE', 'LTU', 'LUX', 'MAC', 'MKD', 'MDG', 'MWI', 'MYS', 'MDV', 'MLI', 'MLT', 'MHL', 'MTQ', 'MRT', 'MUS', 'MYT', 'MEX', 'FSM', 'MDA', 'MCO', 'MNG', 'MSR', 'MAR', 'MOZ', 'MMR', 'NAM', 'NRU', 'NPL', 'NLD', 'ANT', 'NCL', 'NZL', 'NIC', 'NER', 'NGA', 'NIU', 'NFK', 'MNP', 'NOR', 'OMN', 'PAK', 'PLW', 'PAN', 'PNG', 'PRY', 'PER', 'PHL', 'PCN', 'POL', 'PRT', 'PRI', 'QAT', 'REU', 'ROM', 'RUS', 'RWA', 'KNA', 'LCA', 'VCT', 'WSM', 'SMR', 'STP', 'SAU', 'SEN', 'SYC', 'SLE', 'SGP', 'SVK', 'SVN', 'SLB', 'SOM', 'ZAF', 'SGS', 'ESP', 'LKA', 'SHN', 'SPM', 'SDN', 'SUR', 'SJM', 'SWZ', 'SWE', 'CHE', 'SYR', 'TWN', 'TJK', 'TZA', 'THA', 'TGO', 'TKL', 'TON', 'TTO', 'TUN', 'TUR', 'TKM', 'TCA', 'TUV', 'UGA', 'UKR', 'ARE', 'GBR', 'USA', 'UMI', 'URY', 'UZB', 'VUT', 'VEN', 'VNM', 'VGB', 'VIR', 'WLF', 'ESH', 'YEM', 'YUG', 'ZMB', 'ZWE');


$out = str_replace($two, $three, $in);
return $out;
}
//$cc = 'US';
//$cc = 'YT';
$cc = 'LS';
echo two_three($cc);

Thank you.

2

Try…
$two … (as you had it)
$three (as you had it)
$four = array_combine($two,$three);
return (isset($four[$in]) ? $four[$in] : $in);

I’m guessing whats happening is that the string replace does this:

Input String: “LS”
Does “L” exist in my replace array? No.
Does “LS” exist in my replace array? Yes. Replace with LSO. String is now LSO.
Does “LSO” exist in my replace array? No.
Does “S” exist in my replace array? No.
Does “SO” exist in my replace array? Yes. Replace with SOM. String is now LSOM
…(rinse repeat with lots of no’s)
Output: LSOM.

(It also may be walking through the replace array rather than the string, in which case the logic is…
Input String: LS
… (whole bunch of checks)
Does “LS” exist in my target String? Yes. Replace with LSO. String is now LSO.
… (more checks)
Does “SO” exist in my target String? Yes. Replace with SOM. String is now LSOM.
… (more checks)
Output: LSOM.

3

Awesome, that has to be it, I would have never come to that conclusion.

Many Thanks.