3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo count_chars( "AFN,EUR,ALL,DZD,USD,EUR,AOA,XCD,XCD,ARS,AMD,AWG,AUD,EUR,AZN,BSD,BHD,BDT,BBD, BYR,EUR,BZD,XOF,BMD,BTN,INR,BOB,BOV,USD,BAM,BWP,NOK,BRL,USD,BND,BGN,XOF,BIF,KHR,XAF,CAD,CVE,KYD,XAF, XAF,CLF,CLP,CNY,AUD,AUD,COP,COU,KMF,XAF,CDF,NZD,CRC,XOF,HRK,CUC,CUP,ANG,EUR,CZK, DKK,DJF,XCD,DOP,USD,EGP,SVC,USD,XAF,ERN,EUR,ETB,EUR,FKP,DKK,FJD,EUR,EUR,EUR,XPF,EUR,XAF,GMD,GEL,EUR, GHS,GIP,EUR,DKK,XCD,EUR,USD,GTQ,GBP,GNF,XOF,GYD,HTG,USD,AUD,EUR,HNL,HKD,HUF,ISK,INR,IDR,XDR,IRR,IQD, EUR,GBP,ILS,EUR,JMD,JPY,GBP,JOD,KZT,KES,AUD,KPW,KRW,KWD,KGS,LAK,EUR,LBP,LSL,ZAR,LRD,LYD,CHF,LTL,EUR,MOP,MKD, MGA,MWK,MYR,MVR,XOF,EUR,USD,EUR,MRO,MUR,EUR,XUA,MXN,MXV,USD,MDL,EUR,MNT,EUR,XCD,MAD,MZN,MMK,NAD,ZAR,AUD,NPR,EUR, XPF,NZD,NIO,XOF,NGN,NZD,AUD,USD,NOK,OMR,PKR,USD,PAB,USD,PGK,PYG,PEN,PHP,NZD,PLN,EUR,USD,QAR,EUR,RON, RUB,RWF,EUR,SHP,XCD,XCD,EUR,EUR,XCD,WST,EUR,STD,SAR,XOF,RSD,SCR,SLL,SGD,ANG,XSU,EUR,EUR,SBD,SOS,ZAR, SSP,EUR,LKR,SDG,SRD,NOK,SZL,SEK,CHE,CHF,CHW,SYP,TWD,TJS,TZS,THB,USD,XOF,NZD,TOP,TTD,TND,TRY,TMT,USD,AUD,UGX,UAH,AED,GBP,USD,USN,USD,UYI,UYU,UZS,VUV,VEF,VND,USD,USD ,XPF,MAD,YER,ZMW,ZWL,XBA,XBB,XBC,XBD,XTS,XXX,XAU,XPD,XPT,XAG", 3);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
,ABCDEFGHIJKLMNOPQRSTUVWXYZ

preferences:
222.13 ms | 406 KiB | 313 Q