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<?php $a = '0000-00-00 00:00:00'; if(strpos($a,'0000')){ echo 'heyy'; } $mystring = '000'; $findme = '0'; $pos = strpos($mystring, $findme); // Nótese el uso de ===. Puesto que == simple no funcionará como se espera // porque la posición de 'a' está en el 1° (primer) caracter. if ($pos === false) { echo "La cadena '$findme' no fue encontrada en la cadena '$mystring'"; } else { echo "La cadena '$findme' fue encontrada en la cadena '$mystring'"; echo " y existe en la posición $pos"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 23
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 32
Branch analysis from position: 32
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/XEf51
function name:  (null)
number of ops:  33
compiled vars:  !0 = $a, !1 = $mystring, !2 = $findme, !3 = $pos
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '0000-00-00+00%3A00%3A00'
    4     1        INIT_FCALL                                               'strpos'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 '0000'
          4        DO_ICALL                                         $5      
          5      > JMPZ                                                     $5, ->7
    5     6    >   ECHO                                                     'heyy'
    8     7    >   ASSIGN                                                   !1, '000'
    9     8        ASSIGN                                                   !2, '0'
   10     9        INIT_FCALL                                               'strpos'
         10        SEND_VAR                                                 !1
         11        SEND_VAR                                                 !2
         12        DO_ICALL                                         $8      
         13        ASSIGN                                                   !3, $8
   14    14        TYPE_CHECK                                    4          !3
         15      > JMPZ                                                     ~10, ->23
   15    16    >   ROPE_INIT                                     5  ~12     'La+cadena+%27'
         17        ROPE_ADD                                      1  ~12     ~12, !2
         18        ROPE_ADD                                      2  ~12     ~12, '%27+no+fue+encontrada+en+la+cadena+%27'
         19        ROPE_ADD                                      3  ~12     ~12, !1
         20        ROPE_END                                      4  ~11     ~12, '%27'
         21        ECHO                                                     ~11
         22      > JMP                                                      ->32
   17    23    >   ROPE_INIT                                     5  ~16     'La+cadena+%27'
         24        ROPE_ADD                                      1  ~16     ~16, !2
         25        ROPE_ADD                                      2  ~16     ~16, '%27+fue+encontrada+en+la+cadena+%27'
         26        ROPE_ADD                                      3  ~16     ~16, !1
         27        ROPE_END                                      4  ~15     ~16, '%27'
         28        ECHO                                                     ~15
   18    29        NOP                                                      
         30        FAST_CONCAT                                      ~19     '+y+existe+en+la+posici%C3%B3n+', !3
         31        ECHO                                                     ~19
   19    32    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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