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<?php $exp = '/[\s\S]*\{%[\s\S]*for[\s\S]*ad[\s\S]*in[\s\S]*ads[\s\S]*%\}/'; $string = "{% for ad in ads %} sdfksjf {% for ad in ads %} sdfksjf2 {% for ad in ads %} sdfksjf3"; /* function str_lreplace($search, $replace, $subject) { return preg_replace('~(.*)' . preg_quote($search, '~') . '~', '$1' . $replace, $subject, 1); } echo str_lreplace($exp,'',$string); */ $end_loop_regex = '/[\.\s\S]*\{%[\s\S]*endfor[\s\S]*%\}/'; $endfor_str = "{% endfor%}1 {% endfor %}2 {%endfor%}3 {% endfor%}4"; //$arr = preg_split($end_loop_regex,$endfor_str,0,PREG_SPLIT_OFFSET_CAPTURE); preg_match($end_loop_regex,$endfor_str,$arr); //$string = $arr[0][0][0]; $start_tag = strrpos($arr[0],'{'); //print_r($arr); //echo substr($arr[0],0,$start_tag); $string = '{% for ad in ads %} <a href="{{ad.url}}">{{ad.name}}</a> <ul> <li>Ad: <a href="{{ad.url}}">{{ad.name}}({{ad.id}})</a></li> <li>Client: {{ad.client_name}} ({{ad.client_id}})</li> <li>Price: {{ad.price}}</li> <li>Expected Revenue: {{ad.expected_revenue}}</li> <li>Display Url: {{ad.display_url}}</li> <li>Headline: {{ad.headline}}</li> <li>Body: {{ad.body}}</li> <li>Logo: <img src="{{ad.logo.url}}"/></li> <li>Type: {{ad.type}}</li> {% if ad.conditions|length %} <li>Conditions: </li> <ul> {% for condition in ad.conditions %} <li>{{condition.conditiontype.name}} {{condition.operator}} {{condition.value}} </li> {% endfor %} </ul> {% endif %} </ul> {% endfor %}'; preg_replace($exp,'',$string); //$last_end_for_pos = strrpos($return,'{% endfor %}'); //$return = substr($return,0,$last_end_for_pos);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LQCOX
function name:  (null)
number of ops:  22
compiled vars:  !0 = $exp, !1 = $string, !2 = $end_loop_regex, !3 = $endfor_str, !4 = $arr, !5 = $start_tag
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2F%5B%5Cs%5CS%5D%2A%5C%7B%25%5B%5Cs%5CS%5D%2Afor%5B%5Cs%5CS%5D%2Aad%5B%5Cs%5CS%5D%2Ain%5B%5Cs%5CS%5D%2Aads%5B%5Cs%5CS%5D%2A%25%5C%7D%2F'
    3     1        ASSIGN                                                   !1, '%7B%25+for+ad+in+ads+%25%7D+sdfksjf++%7B%25+for+ad+in+ads+%25%7D+sdfksjf2+%7B%25+for+ad+in+ads+%25%7D+sdfksjf3'
   12     2        ASSIGN                                                   !2, '%2F%5B%5C.%5Cs%5CS%5D%2A%5C%7B%25%5B%5Cs%5CS%5D%2Aendfor%5B%5Cs%5CS%5D%2A%25%5C%7D%2F'
   13     3        ASSIGN                                                   !3, '%7B%25+endfor%25%7D1+%7B%25+endfor+%25%7D2+%7B%25endfor%25%7D3+%7B%25+endfor%25%7D4'
   16     4        INIT_FCALL                                               'preg_match'
          5        SEND_VAR                                                 !2
          6        SEND_VAR                                                 !3
          7        SEND_REF                                                 !4
          8        DO_ICALL                                                 
   18     9        INIT_FCALL                                               'strrpos'
         10        FETCH_DIM_R                                      ~11     !4, 0
         11        SEND_VAL                                                 ~11
         12        SEND_VAL                                                 '%7B'
         13        DO_ICALL                                         $12     
         14        ASSIGN                                                   !5, $12
   21    15        ASSIGN                                                   !1, '%7B%25+for+ad+in+ads+%25%7D%0A++%3Ca+href%3D%22%7B%7Bad.url%7D%7D%22%3E%7B%7Bad.name%7D%7D%3C%2Fa%3E%0A++%3Cul%3E%0A++++++%3Cli%3EAd%3A+%3Ca+href%3D%22%7B%7Bad.url%7D%7D%22%3E%7B%7Bad.name%7D%7D%28%7B%7Bad.id%7D%7D%29%3C%2Fa%3E%3C%2Fli%3E%0A++++++%3Cli%3EClient%3A+%7B%7Bad.client_name%7D%7D+%28%7B%7Bad.client_id%7D%7D%29%3C%2Fli%3E%0A++++++%3Cli%3EPrice%3A+%7B%7Bad.price%7D%7D%3C%2Fli%3E%0A++++++%3Cli%3EExpected+Revenue%3A+%7B%7Bad.expected_revenue%7D%7D%3C%2Fli%3E%0A++++++%3Cli%3EDisplay+Url%3A+%7B%7Bad.display_url%7D%7D%3C%2Fli%3E%0A++++++%3Cli%3EHeadline%3A+%7B%7Bad.headline%7D%7D%3C%2Fli%3E%0A++++++%3Cli%3EBody%3A+%7B%7Bad.body%7D%7D%3C%2Fli%3E%0A++++++%3Cli%3ELogo%3A+%3Cimg+src%3D%22%7B%7Bad.logo.url%7D%7D%22%2F%3E%3C%2Fli%3E%0A++++++%3Cli%3EType%3A+%7B%7Bad.type%7D%7D%3C%2Fli%3E%0A++++++++++++%7B%25+if+ad.conditions%7Clength+%25%7D%0A++++++++++++++++%3Cli%3EConditions%3A+%3C%2Fli%3E%0A++++++++%3Cul%3E%0A++++++++++%7B%25+for+condition+in+ad.conditions+%25%7D%0A++++++++++%3Cli%3E%7B%7Bcondition.conditiontype.name%7D%7D+%7B%7Bcondition.operator%7D%7D+%7B%7Bcondition.value%7D%7D+%3C%2Fli%3E%0A++++++%7B%25+endfor+%25%7D%0A++++++++%3C%2Ful%3E%0A++++++%7B%25+endif+%25%7D%0A++++%3C%2Ful%3E%0A%7B%25+endfor+%25%7D'
   43    16        INIT_FCALL                                               'preg_replace'
         17        SEND_VAR                                                 !0
         18        SEND_VAL                                                 ''
         19        SEND_VAR                                                 !1
         20        DO_ICALL                                                 
   51    21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0

preferences:
155.91 ms | 1396 KiB | 19 Q