Question

如何提高搜索字符数限制？现在在示例中是3276个字符但在3275中它的工作正常

ini_set("pcre.backtrack_limit", "23001337");
ini_set("pcre.recursion_limit", "23001337");

$str = "<div>";
for ($x=1;$x<=327;$x++){
    $str .= "1234567890";
}
$str .="123456";
$str .= "</div>";

$w1 = "/<div>((.*?|\n)*)<\/div>/";
preg_match_all($w1, $str, $matches);
print_r($matches);

Answer 1

尝试禁用pcre.jit（不要使用PCRE的即时编译）：

import Foundation

// Response "Data" key array elements
struct Level: Codable {
  let time: Double
  let close: Double
  let high: Double
  let low: Double
  let open: Double
  let volumefrom: Double
  let volumeto: Double
}

// The whole response (with some keys missing)
struct Response: Codable {
  let response: String
  let type: Int
  let aggregated: Bool
  let data: [Level] // Translates the JSON array

  // custom key names
  private enum CodingKeys : String, CodingKey {
    case data = "Data"
    case response = "Response"
    case type = "Type"
    case aggregated = "Aggregated"
  }
}

// The actual JSON String (shortened to two array members)
let json = """
{"Response":"Success",
 "Type":100,
 "Aggregated":true,
 "Data":[
   {"time":1514469240,"close":14090.41,"high":14119.99,"low":14077.7,"open":14093.54,"volumefrom":189.71,"volumeto":2696906.84},
   {"time":1514469420,"close":14127.84,"high":14131.19,"low":14081.38,"open":14090.41,"volumefrom":197.76,"volumeto":2805972.44}],
 "TimeTo":1514480160,
 "TimeFrom":1514469240,
 "FirstValueInArray":true,
 "ConversionType":{
   "type":"direct",
   "conversionSymbol":""}}
"""

// Make the String into a Data and decode it
if let jsonData = json.data(using: .utf8),
  let decoded = try? JSONDecoder().decode(Response.self, from: jsonData) {
  // print all the decoded objects
  print(decoded)

  // print the decoded Data object at index 0
  print("\n", decoded.data[0])
}

// Decoded objects:

/** Response(response: "Success", type: 100, aggregated: true, data: [
     __lldb_expr_15.Level(time: 1514469240.0, close: 14090.41, high: 14119.99, low: 14077.700000000001, open: 14093.540000000001, volumefrom: 189.71000000000001, volumeto: 2696906.8399999999),
     __lldb_expr_15.Level(time: 1514469420.0, close: 14127.84, high: 14131.190000000001, low: 14081.379999999999, open: 14090.41, volumefrom: 197.75999999999999, volumeto: 2805972.4399999999)]) */

// Data object at index 0:

/**  Level(time: 1514469240.0, close: 14090.41, high: 14119.99, low: 14077.700000000001, open: 14093.540000000001, volumefrom: 189.71000000000001, volumeto: 2696906.8399999999) */

您应该执行preg_last_error()以了解失败的原因。

PHP preg匹配所有限制3725个字符

1 个答案: